using regex to replace some text

this code only replaces the last instance in a string, is there anyway to have it work on all instances in the string?

if ($syllableCount -ge 2 -and $lastthree -eq 'ing') {
        $newWord = $word -replace "ing$", "in'"
        $newWord
    }
    else {
        $word
    }

output:

.\friar.ps1 -words 'Doing making going'
Doing making goin'

PS – I am working on Doug Finkes Tiny-Powershell-Projects challenges, they are alot of fun.
text

if ($syllableCount -ge 2 -and $lastthree -eq 'ing') {
        $newWord = $word -replace "ing$", "in'"
        $newWord
    }
    else {
        $word
    }

actual output:

.\friar.ps1 -words 'Doing making going'
Doing making goin'

Would like to see:

Doin' makin' goin'

>Solution :

Your regex just needs a tiny modification to make it work, change $ (end of string) for \b (matches a word boundary) then it should work:

'Doing making going' -replace 'ing\b', "in'"

See https://regex101.com/r/KCIHRc/1 for regex details.