1. All three forms are the same (example: cut – cut – cut)
fight
tell
let
make
2. The past simple and past participle are the same but the base form is different.
meet
cut
win
put
3. The past simple and past participle end in '–ght' (example: think – thought – thought)
set
speak
take
teach
4. The root in the simple past changes to –o– and the past participle form to –o–en (example: break – broke – broken)
have
speak
catch
get