plurals

[mummyc0]

please advise plurals for following words:

thatch, catch, hatch
mash, flesh,
princess, mess, guess, process
ox, cox, sex

[herbiji]

hello mummyco

thatch..thatches
catch....catches
hatch....hatches
mash.....I don't know exactly ...may be mashes
flesh.....flesh
princess .....princesses
mess....messes
guess....guesses
process.....processes
ox....oxen
cox ..... coxes
sex .....sexes

I hope that help