u6 gram 2 stem changing verbs

Question 1

what are the 3 primary forms of stem changing verbs

Answer 1

e>ie
e>i
o>ue

Question 2

conjugate servir

Answer 2

sirvo
sirves
servimos
servís
sirven

Question 3

conjugate perder

Answer 3

pierdo
pierdes
pierde
perdemos
perdeís
pierden

Question 4

conjugate contar

Answer 4

cuento
cuentas
cuenta
contamos
conteís
cuentan