I can swirl you can swirl he can swirl we can swirl you can swirl they can swirl
V-ing form
I can be swirling you can be swirling he can be swirling we can be swirling you can be swirling they can be swirling
Perfect
I can have swirled you can have swirled he can have swirled we can have swirled you can have swirled they can have swirled
V-ing perfect
I can have been swirling you can have been swirling he can have been swirling we can have been swirling you can have been swirling they can have been swirling
Negation
Simple form
I can't swirl you can't swirl he can't swirl we can't swirl you can't swirl they can't swirl
V-ing form
I can't be swirling you can't be swirling he can't be swirling we can't be swirling you can't be swirling they can't be swirling
Perfect
I can't have swirled you can't have swirled he can't have swirled we can't have swirled you can't have swirled they can't have swirled
V-ing perfect
I can't have been swirling you can't have been swirling he can't have been swirling we can't have been swirling you can't have been swirling they can't have been swirling
Interrogative form
Simple form
can I swirl? can you swirl? can he swirl? can we swirl? can you swirl? can they swirl?
V-ing form
can I be swirling? can you be swirling? can he be swirling? can we be swirling? can you be swirling? can they be swirling?
Perfect
can I have swirled? can you have swirled? can he have swirled? can we have swirled? can you have swirled? can they have swirled?
V-ing perfect
can I have been swirling? can you have been swirling? can he have been swirling? can we have been swirling? can you have been swirling? can they have been swirling?
Interro-negative form
Simple form
can't I swirl? can't you swirl? can't he swirl? can't we swirl? can't you swirl? can't they swirl?
V-ing form
can't I be swirling? can't you be swirling? can't he be swirling? can't we be swirling? can't you be swirling? can't they be swirling?
Perfect
can't I have swirled? can't you have swirled? can't he have swirled? can't we have swirled? can't you have swirled? can't they have swirled?
V-ing perfect
can't I have been swirling? can't you have been swirling? can't he have been swirling? can't we have been swirling? can't you have been swirling? can't they have been swirling?