Create a new function that takes in 2 parameters 

func getTimeSince(date: Date, isShort: Bool = false) -> String {
    
}

Calculate the time difference between the date and now in seconds using 

let now = Date()
let secondsAgo = Int(now.timeIntervalSince(date))

Prepare the String suffix using the isShort Bool passed through the parameters.

let secondString = isShort ? "s ago" : " second ago"
let secondsString = isShort ? "s ago" : " seconds ago"
let minuteString = isShort ? "m ago" : " minute ago"
let minutesString = isShort ? "m ago" : " minutes ago"
let hourString = isShort ? "h ago" : " hour ago"
let hoursString = isShort ? "h ago" : " hours ago"
let dayString = isShort ? "d ago" : " day ago"
let daysString = isShort ? "d ago" : " days ago"
let weekString = isShort ? "w ago" : " week ago"
let weeksString = isShort ? "w ago" : " weeks ago"
let monthString = isShort ? "mo ago" : " month ago"
let monthsString = isShort ? "mo ago" : " months ago"
let yearString = isShort ? "y ago" : " year ago"
let yearsString = isShort ? "y ago" : " years ago"

 to seconds, minutes, hours, days, weeks, months and years to determine the correct String suffix. Also check if the 

 value is less than 2 to determine whether to use the plural or singular term for the formatted String.

let twoSeconds = 2
let minute = 60
let twoMinutes = minute * 2
let hour = 60 * minute
let twoHours = hour * 2
let day = 24 * hour
let twoDays = day * 2
let week = 7 * day
let twoWeeks = week * 2
let month = 4 * week
let twoMonths = month * 2
let year = 12 * month
let twoYears = year * 2

if secondsAgo < twoSeconds {
    formattedString = "\(secondsAgo)\(secondString)"
} else if secondsAgo < minute {
    formattedString = "\(secondsAgo)\(secondsString)"
} else if secondsAgo < twoMinutes {
    formattedString = "\(secondsAgo / minute)\(minuteString)"
} else if secondsAgo < hour {
    formattedString = "\(secondsAgo / minute)\(minutesString)"
} else if secondsAgo < twoHours {
    formattedString = "\(secondsAgo / hour)\(hourString)"
} else if secondsAgo < day {
    formattedString = "\(secondsAgo / hour)\(hoursString)"
} else if secondsAgo < twoDays {
    formattedString = "\(secondsAgo / day)\(dayString)"
} else if secondsAgo < week {
    formattedString = "\(secondsAgo / day)\(daysString)"
} else if secondsAgo < twoWeeks {
    formattedString = "\(secondsAgo / week)\(weekString)"
} else if secondsAgo < month {
    formattedString = "\(secondsAgo / week)\(weeksString)"
} else if secondsAgo < twoMonths {
    formattedString = "\(secondsAgo / month)\(monthString)"
} else if secondsAgo < year {
    formattedString = "\(secondsAgo / month)\(monthsString)"
} else if secondsAgo < twoYears {
    formattedString = "\(secondsAgo / year)\(yearString)"
} else {
    formattedString = "\(secondsAgo / year)\(yearsString)"
}

func getTimeSince(date: Date, isShort: Bool = false) -> String {
    var formattedString = String()
    let now = Date()
    let secondsAgo = Int(now.timeIntervalSince(date))
    
    let twoSeconds = 2
    let minute = 60
    let twoMinutes = minute * 2
    let hour = 60 * minute
    let twoHours = hour * 2
    let day = 24 * hour
    let twoDays = day * 2
    let week = 7 * day
    let twoWeeks = week * 2
    let month = 4 * week
    let twoMonths = month * 2
    let year = 12 * month
    let twoYears = year * 2
    
    let secondString = isShort ? "s ago" : " second ago"
    let secondsString = isShort ? "s ago" : " seconds ago"
    let minuteString = isShort ? "m ago" : " minute ago"
    let minutesString = isShort ? "m ago" : " minutes ago"
    let hourString = isShort ? "h ago" : " hour ago"
    let hoursString = isShort ? "h ago" : " hours ago"
    let dayString = isShort ? "d ago" : " day ago"
    let daysString = isShort ? "d ago" : " days ago"
    let weekString = isShort ? "w ago" : " week ago"
    let weeksString = isShort ? "w ago" : " weeks ago"
    let monthString = isShort ? "mo ago" : " month ago"
    let monthsString = isShort ? "mo ago" : " months ago"
    let yearString = isShort ? "y ago" : " year ago"
    let yearsString = isShort ? "y ago" : " years ago"
    
    if secondsAgo < twoSeconds {
        formattedString = "\(secondsAgo)\(secondString)"
    } else if secondsAgo < minute {
        formattedString = "\(secondsAgo)\(secondsString)"
    } else if secondsAgo < twoMinutes {
        formattedString = "\(secondsAgo / minute)\(minuteString)"
    } else if secondsAgo < hour {
        formattedString = "\(secondsAgo / minute)\(minutesString)"
    } else if secondsAgo < twoHours {
        formattedString = "\(secondsAgo / hour)\(hourString)"
    } else if secondsAgo < day {
        formattedString = "\(secondsAgo / hour)\(hoursString)"
    } else if secondsAgo < twoDays {
        formattedString = "\(secondsAgo / day)\(dayString)"
    } else if secondsAgo < week {
        formattedString = "\(secondsAgo / day)\(daysString)"
    } else if secondsAgo < twoWeeks {
        formattedString = "\(secondsAgo / week)\(weekString)"
    } else if secondsAgo < month {
        formattedString = "\(secondsAgo / week)\(weeksString)"
    } else if secondsAgo < twoMonths {
        formattedString = "\(secondsAgo / month)\(monthString)"
    } else if secondsAgo < year {
        formattedString = "\(secondsAgo / month)\(monthsString)"
    } else if secondsAgo < twoYears {
        formattedString = "\(secondsAgo / year)\(yearString)"
    } else {
        formattedString = "\(secondsAgo / year)\(yearsString)"
    }
    return formattedString
}

Full code

let formattedTimeAgo = self.getTimeSince(date: date, isShort: false)

Usage

Salman B.

Create a new function that takes in 2 parameters `date` and `isShort` and returns a String.
```

func getTimeSince(date: Date, isShort: Bool = false) -> String {
    
}
```

Calculate the time difference between the date and now in seconds using `timeIntervalSince`
```
let now = Date()
let secondsAgo = Int(now.timeIntervalSince(date))

```

Prepare the String suffix using the isShort Bool passed through the parameters.
```
let secondString = isShort ? "s ago" : " second ago"
let secondsString = isShort ? "s ago" : " seconds ago"
let minuteString = isShort ? "m ago" : " minute ago"
let minutesString = isShort ? "m ago" : " minutes ago"
let hourString = isShort ? "h ago" : " hour ago"
let hoursString = isShort ? "h ago" : " hours ago"
let dayString = isShort ? "d ago" : " day ago"
let daysString = isShort ? "d ago" : " days ago"
let weekString = isShort ? "w ago" : " week ago"
let weeksString = isShort ? "w ago" : " weeks ago"
let monthString = isShort ? "mo ago" : " month ago"
let monthsString = isShort ? "mo ago" : " months ago"
let yearString = isShort ? "y ago" : " year ago"
let yearsString = isShort ? "y ago" : " years ago"

```

Using an if statement compare `secondsAgo` to seconds, minutes, hours, days, weeks, months and years to determine the correct String suffix. Also check if the `secondsAgo` value is less than 2 to determine whether to use the plural or singular term for the formatted String.
```
let twoSeconds = 2
let minute = 60
let twoMinutes = minute * 2
let hour = 60 * minute
let twoHours = hour * 2
let day = 24 * hour
let twoDays = day * 2
let week = 7 * day
let twoWeeks = week * 2
let month = 4 * week
let twoMonths = month * 2
let year = 12 * month
let twoYears = year * 2

if secondsAgo < twoSeconds {
    formattedString = "\(secondsAgo)\(secondString)"
} else if secondsAgo < minute {
    formattedString = "\(secondsAgo)\(secondsString)"
} else if secondsAgo < twoMinutes {
    formattedString = "\(secondsAgo / minute)\(minuteString)"
} else if secondsAgo < hour {
    formattedString = "\(secondsAgo / minute)\(minutesString)"
} else if secondsAgo < twoHours {
    formattedString = "\(secondsAgo / hour)\(hourString)"
} else if secondsAgo < day {
    formattedString = "\(secondsAgo / hour)\(hoursString)"
} else if secondsAgo < twoDays {
    formattedString = "\(secondsAgo / day)\(dayString)"
} else if secondsAgo < week {
    formattedString = "\(secondsAgo / day)\(daysString)"
} else if secondsAgo < twoWeeks {
    formattedString = "\(secondsAgo / week)\(weekString)"
} else if secondsAgo < month {
    formattedString = "\(secondsAgo / week)\(weeksString)"
} else if secondsAgo < twoMonths {
    formattedString = "\(secondsAgo / month)\(monthString)"
} else if secondsAgo < year {
    formattedString = "\(secondsAgo / month)\(monthsString)"
} else if secondsAgo < twoYears {
    formattedString = "\(secondsAgo / year)\(yearString)"
} else {
    formattedString = "\(secondsAgo / year)\(yearsString)"
}
```

```
func getTimeSince(date: Date, isShort: Bool = false) -> String {
    var formattedString = String()
    let now = Date()
    let secondsAgo = Int(now.timeIntervalSince(date))
    
    let twoSeconds = 2
    let minute = 60
    let twoMinutes = minute * 2
    let hour = 60 * minute
    let twoHours = hour * 2
    let day = 24 * hour
    let twoDays = day * 2
    let week = 7 * day
    let twoWeeks = week * 2
    let month = 4 * week
    let twoMonths = month * 2
    let year = 12 * month
    let twoYears = year * 2
    
    let secondString = isShort ? "s ago" : " second ago"
    let secondsString = isShort ? "s ago" : " seconds ago"
    let minuteString = isShort ? "m ago" : " minute ago"
    let minutesString = isShort ? "m ago" : " minutes ago"
    let hourString = isShort ? "h ago" : " hour ago"
    let hoursString = isShort ? "h ago" : " hours ago"
    let dayString = isShort ? "d ago" : " day ago"
    let daysString = isShort ? "d ago" : " days ago"
    let weekString = isShort ? "w ago" : " week ago"
    let weeksString = isShort ? "w ago" : " weeks ago"
    let monthString = isShort ? "mo ago" : " month ago"
    let monthsString = isShort ? "mo ago" : " months ago"
    let yearString = isShort ? "y ago" : " year ago"
    let yearsString = isShort ? "y ago" : " years ago"
    
    if secondsAgo < twoSeconds {
        formattedString = "\(secondsAgo)\(secondString)"
    } else if secondsAgo < minute {
        formattedString = "\(secondsAgo)\(secondsString)"
    } else if secondsAgo < twoMinutes {
        formattedString = "\(secondsAgo / minute)\(minuteString)"
    } else if secondsAgo < hour {
        formattedString = "\(secondsAgo / minute)\(minutesString)"
    } else if secondsAgo < twoHours {
        formattedString = "\(secondsAgo / hour)\(hourString)"
    } else if secondsAgo < day {
        formattedString = "\(secondsAgo / hour)\(hoursString)"
    } else if secondsAgo < twoDays {
        formattedString = "\(secondsAgo / day)\(dayString)"
    } else if secondsAgo < week {
        formattedString = "\(secondsAgo / day)\(daysString)"
    } else if secondsAgo < twoWeeks {
        formattedString = "\(secondsAgo / week)\(weekString)"
    } else if secondsAgo < month {
        formattedString = "\(secondsAgo / week)\(weeksString)"
    } else if secondsAgo < twoMonths {
        formattedString = "\(secondsAgo / month)\(monthString)"
    } else if secondsAgo < year {
        formattedString = "\(secondsAgo / month)\(monthsString)"
    } else if secondsAgo < twoYears {
        formattedString = "\(secondsAgo / year)\(yearString)"
    } else {
        formattedString = "\(secondsAgo / year)\(yearsString)"
    }
    return formattedString
}
```

```
let formattedTimeAgo = self.getTimeSince(date: date, isShort: false)
```