English verb conjugation
COULD SWIRL

Regular verb: swirl - swirled - swirled

Affirmation

Simple form	V-ing form
I could swirl you could swirl she could swirl we could swirl you could swirl they could swirl	I could be swirling you could be swirling she could be swirling we could be swirling you could be swirling they could be swirling
Perfect	V-ing perfect
I could have swirled you could have swirled she could have swirled we could have swirled you could have swirled they could have swirled	I could have been swirling you could have been swirling she could have been swirling we could have been swirling you could have been swirling they could have been swirling

Negation

Simple form	V-ing form
I couldn't swirl you couldn't swirl she couldn't swirl we couldn't swirl you couldn't swirl they couldn't swirl	I couldn't be swirling you couldn't be swirling she couldn't be swirling we couldn't be swirling you couldn't be swirling they couldn't be swirling
Perfect	V-ing perfect
I couldn't have swirled you couldn't have swirled she couldn't have swirled we couldn't have swirled you couldn't have swirled they couldn't have swirled	I couldn't have been swirling you couldn't have been swirling she couldn't have been swirling we couldn't have been swirling you couldn't have been swirling they couldn't have been swirling

Interrogative form

Simple form	V-ing form
could I swirl? could you swirl? could she swirl? could we swirl? could you swirl? could they swirl?	could I be swirling? could you be swirling? could she be swirling? could we be swirling? could you be swirling? could they be swirling?
Perfect	V-ing perfect
could I have swirled? could you have swirled? could she have swirled? could we have swirled? could you have swirled? could they have swirled?	could I have been swirling? could you have been swirling? could she have been swirling? could we have been swirling? could you have been swirling? could they have been swirling?

Interro-negative form

Simple form	V-ing form
couldn't I swirl? couldn't you swirl? couldn't she swirl? couldn't we swirl? couldn't you swirl? couldn't they swirl?	couldn't I be swirling? couldn't you be swirling? couldn't she be swirling? couldn't we be swirling? couldn't you be swirling? couldn't they be swirling?
Perfect	V-ing perfect
couldn't I have swirled? couldn't you have swirled? couldn't she have swirled? couldn't we have swirled? couldn't you have swirled? couldn't they have swirled?	couldn't I have been swirling? couldn't you have been swirling? couldn't she have been swirling? couldn't we have been swirling? couldn't you have been swirling? couldn't they have been swirling?