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 cannot frock you cannot frock he cannot frock we cannot frock you cannot frock they cannot frock	I cannot be frocking you cannot be frocking he cannot be frocking we cannot be frocking you cannot be frocking they cannot be frocking
Perfect	V-ing perfect
I cannot have frocked you cannot have frocked he cannot have frocked we cannot have frocked you cannot have frocked they cannot have frocked	I cannot have been frocking you cannot have been frocking he cannot have been frocking we cannot have been frocking you cannot have been frocking they cannot 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 I not frock? can you not frock? can he not frock? can we not frock? can you not frock? can they not frock?	can I not be frocking? can you not be frocking? can he not be frocking? can we not be frocking? can you not be frocking? can they not be frocking?
Perfect	V-ing perfect
can I not have frocked? can you not have frocked? can he not have frocked? can we not have frocked? can you not have frocked? can they not have frocked?	can I not have been frocking? can you not have been frocking? can he not have been frocking? can we not have been frocking? can you not have been frocking? can they not have been frocking?