conjugate the following verbs;

jouer-to play

je-joue
tu-joues
on-??????

manger-to eat
on-???

3 answers

For present indicative of regular verbs of the first group ending in -er, the endings are
je -e
tu -es
il,elle,on -e
nous -ons
vous -ez
ils -ent

For example (as in the Bescherelle)
j'aime
tu aimes
il,elle,on aime
nous aimons
vous aimez
ils aiment

So separate the infinitive of jouer into jou-er and conjugate accordingly.

You can do the same for manger, except that for the first person plural (nous), we need to write mangeons to soften the "g" and not write "mangons".

If you need a check, post what you've done.

thanks again

Je vous en prie!