English verb conjugation
CAN CIRCLE

Regular verb: circle - circled - circled

Affirmation

Simple form	V-ing form
I can circle you can circle he can circle we can circle you can circle they can circle	I can be circling you can be circling he can be circling we can be circling you can be circling they can be circling
Perfect	V-ing perfect
I can have circled you can have circled he can have circled we can have circled you can have circled they can have circled	I can have been circling you can have been circling he can have been circling we can have been circling you can have been circling they can have been circling

Negation

Simple form	V-ing form
I can't circle you can't circle he can't circle we can't circle you can't circle they can't circle	I can't be circling you can't be circling he can't be circling we can't be circling you can't be circling they can't be circling
Perfect	V-ing perfect
I can't have circled you can't have circled he can't have circled we can't have circled you can't have circled they can't have circled	I can't have been circling you can't have been circling he can't have been circling we can't have been circling you can't have been circling they can't have been circling

Interrogative form

Simple form	V-ing form
can I circle? can you circle? can he circle? can we circle? can you circle? can they circle?	can I be circling? can you be circling? can he be circling? can we be circling? can you be circling? can they be circling?
Perfect	V-ing perfect
can I have circled? can you have circled? can he have circled? can we have circled? can you have circled? can they have circled?	can I have been circling? can you have been circling? can he have been circling? can we have been circling? can you have been circling? can they have been circling?

Interro-negative form

Simple form	V-ing form
can't I circle? can't you circle? can't he circle? can't we circle? can't you circle? can't they circle?	can't I be circling? can't you be circling? can't he be circling? can't we be circling? can't you be circling? can't they be circling?
Perfect	V-ing perfect
can't I have circled? can't you have circled? can't he have circled? can't we have circled? can't you have circled? can't they have circled?	can't I have been circling? can't you have been circling? can't he have been circling? can't we have been circling? can't you have been circling? can't they have been circling?