Let's make some verbs:

There are two things to keep in mind to make verbs: the first is the stem. There are 4 families, and each wants to keep its own vowel (except the wacky third, which can't make up its mind!): -ā, -ē, (3rd!), and -ī. The vowel loses its macron if there is a final -m, -t, or -nt.

Secondly, you have to know what person marker you need:
I = Ego -m/ō
You = Tu -s
He/She/It = Is/Ea/Id -t
We = Nos -mus
Y'all = Vos -tis
They = Iī/Eae/Ea -nt.

Here we go!