I can circle you can circle she can circle we can circle you can circle they can circle
Forma com V-ing
I can be circling you can be circling she can be circling we can be circling you can be circling they can be circling
Perfeito
I can have circled you can have circled she can have circled we can have circled you can have circled they can have circled
Perfeito com V-ing
I can have been circling you can have been circling she can have been circling we can have been circling you can have been circling they can have been circling
Negação
Forma simple
I can't circle you can't circle she can't circle we can't circle you can't circle they can't circle
Forma com V-ing
I can't be circling you can't be circling she can't be circling we can't be circling you can't be circling they can't be circling
Perfeito
I can't have circled you can't have circled she can't have circled we can't have circled you can't have circled they can't have circled
Perfeito com V-ing
I can't have been circling you can't have been circling she can't have been circling we can't have been circling you can't have been circling they can't have been circling
Forma interrogativa
Forma simple
can I circle? can you circle? can she circle? can we circle? can you circle? can they circle?
Forma com V-ing
can I be circling? can you be circling? can she be circling? can we be circling? can you be circling? can they be circling?
Perfeito
can I have circled? can you have circled? can she have circled? can we have circled? can you have circled? can they have circled?
Perfeito com V-ing
can I have been circling? can you have been circling? can she have been circling? can we have been circling? can you have been circling? can they have been circling?
Forma interro-Negação
Forma simple
can't I circle? can't you circle? can't she circle? can't we circle? can't you circle? can't they circle?
Forma com V-ing
can't I be circling? can't you be circling? can't she be circling? can't we be circling? can't you be circling? can't they be circling?
Perfeito
can't I have circled? can't you have circled? can't she have circled? can't we have circled? can't you have circled? can't they have circled?
Perfeito com V-ing
can't I have been circling? can't you have been circling? can't she have been circling? can't we have been circling? can't you have been circling? can't they have been circling?