English verb conjugation
CAN FROCK

Regular verb: frock - frocked - frocked

Affirmation

Simple form	V-ing form
I can frock you can frock he can frock we can frock you can frock they can frock	I can be frocking you can be frocking he can be frocking we can be frocking you can be frocking they can be frocking
Perfect	V-ing perfect
I can have frocked you can have frocked he can have frocked we can have frocked you can have frocked they can have frocked	I can have been frocking you can have been frocking he can have been frocking we can have been frocking you can have been frocking they can have been frocking

Negation

Simple form	V-ing form
I can't frock you can't frock he can't frock we can't frock you can't frock they can't frock	I can't be frocking you can't be frocking he can't be frocking we can't be frocking you can't be frocking they can't be frocking
Perfect	V-ing perfect
I can't have frocked you can't have frocked he can't have frocked we can't have frocked you can't have frocked they can't have frocked	I can't have been frocking you can't have been frocking he can't have been frocking we can't have been frocking you can't have been frocking they can't have been frocking

Interrogative form

Simple form	V-ing form
can I frock? can you frock? can he frock? can we frock? can you frock? can they frock?	can I be frocking? can you be frocking? can he be frocking? can we be frocking? can you be frocking? can they be frocking?
Perfect	V-ing perfect
can I have frocked? can you have frocked? can he have frocked? can we have frocked? can you have frocked? can they have frocked?	can I have been frocking? can you have been frocking? can he have been frocking? can we have been frocking? can you have been frocking? can they have been frocking?

Interro-negative form

Simple form	V-ing form
can't I frock? can't you frock? can't he frock? can't we frock? can't you frock? can't they frock?	can't I be frocking? can't you be frocking? can't he be frocking? can't we be frocking? can't you be frocking? can't they be frocking?
Perfect	V-ing perfect
can't I have frocked? can't you have frocked? can't he have frocked? can't we have frocked? can't you have frocked? can't they have frocked?	can't I have been frocking? can't you have been frocking? can't he have been frocking? can't we have been frocking? can't you have been frocking? can't they have been frocking?