English verb conjugation
CAN PRACTICE

Regular verb: practice - practiced - practiced

Affirmation

Simple form	V-ing form
I can practice you can practice she can practice we can practice you can practice they can practice	I can be practicing you can be practicing she can be practicing we can be practicing you can be practicing they can be practicing
Perfect	V-ing perfect
I can have practiced you can have practiced she can have practiced we can have practiced you can have practiced they can have practiced	I can have been practicing you can have been practicing she can have been practicing we can have been practicing you can have been practicing they can have been practicing

Negation

Simple form	V-ing form
I can't practice you can't practice she can't practice we can't practice you can't practice they can't practice	I can't be practicing you can't be practicing she can't be practicing we can't be practicing you can't be practicing they can't be practicing
Perfect	V-ing perfect
I can't have practiced you can't have practiced she can't have practiced we can't have practiced you can't have practiced they can't have practiced	I can't have been practicing you can't have been practicing she can't have been practicing we can't have been practicing you can't have been practicing they can't have been practicing

Interrogative form

Simple form	V-ing form
can I practice? can you practice? can she practice? can we practice? can you practice? can they practice?	can I be practicing? can you be practicing? can she be practicing? can we be practicing? can you be practicing? can they be practicing?
Perfect	V-ing perfect
can I have practiced? can you have practiced? can she have practiced? can we have practiced? can you have practiced? can they have practiced?	can I have been practicing? can you have been practicing? can she have been practicing? can we have been practicing? can you have been practicing? can they have been practicing?

Interro-negative form

Simple form	V-ing form
can't I practice? can't you practice? can't she practice? can't we practice? can't you practice? can't they practice?	can't I be practicing? can't you be practicing? can't she be practicing? can't we be practicing? can't you be practicing? can't they be practicing?
Perfect	V-ing perfect
can't I have practiced? can't you have practiced? can't she have practiced? can't we have practiced? can't you have practiced? can't they have practiced?	can't I have been practicing? can't you have been practicing? can't she have been practicing? can't we have been practicing? can't you have been practicing? can't they have been practicing?