Short vowels
Double the last letter and add a er/ add ste
Twin vowels
Er: off with its head/remove one vowel and add er
Ste:add ste
Double vowel or consonants
Add er/ste
Ending in r
Er: add der
Ste:add ste
Ending in lik
And er/ste
Ending in ig
And er/ste
Ending in a long vowel
Add er/ste
Short vowel + g
Add ter/ste
Exceptions:baie
Meer
Die meeste
Exceptions:goed
Beter
Beste
Exceptions:jonk
Jonger
Jongste
Exceptions:lank
Langer
Langste