1. Stem-changing verbs: poder and dormir
Like jugar, poder and dormir are stem-changing verbs. They have a change from O UE in all forms except nosotros and vosotros. Here are the present-tense forms.
Poder- can, to be able to]
Dormir- to sleep

2. Notice there are NO CHANGES in the nosotros form.
You just have to memorize them like this…you will have to write the t-charts just like this for the test.
Notice there are NO CHANGES in the nosotros form.
Puedo (I can)
Podemos (we can)
Puedes (you can) X
Puede
(He/She can)
Pueden
(Y’all/they can)
Duermo (I sleep)
Dormimos (
we sleep)
Duermes
(you sleep) X
Duerme
(He/she sleeps)
Duermen
(Y’all/they sleep)