English verb conjugation
COULD SWOOSH

Regular verb: swoosh - swooshed - swooshed

Affirmation

Simple form	V-ing form
I could swoosh you could swoosh he could swoosh we could swoosh you could swoosh they could swoosh	I could be swooshing you could be swooshing he could be swooshing we could be swooshing you could be swooshing they could be swooshing
Perfect	V-ing perfect
I could have swooshed you could have swooshed he could have swooshed we could have swooshed you could have swooshed they could have swooshed	I could have been swooshing you could have been swooshing he could have been swooshing we could have been swooshing you could have been swooshing they could have been swooshing

Negation

Simple form	V-ing form
I couldn't swoosh you couldn't swoosh he couldn't swoosh we couldn't swoosh you couldn't swoosh they couldn't swoosh	I couldn't be swooshing you couldn't be swooshing he couldn't be swooshing we couldn't be swooshing you couldn't be swooshing they couldn't be swooshing
Perfect	V-ing perfect
I couldn't have swooshed you couldn't have swooshed he couldn't have swooshed we couldn't have swooshed you couldn't have swooshed they couldn't have swooshed	I couldn't have been swooshing you couldn't have been swooshing he couldn't have been swooshing we couldn't have been swooshing you couldn't have been swooshing they couldn't have been swooshing

Interrogative form

Simple form	V-ing form
could I swoosh? could you swoosh? could he swoosh? could we swoosh? could you swoosh? could they swoosh?	could I be swooshing? could you be swooshing? could he be swooshing? could we be swooshing? could you be swooshing? could they be swooshing?
Perfect	V-ing perfect
could I have swooshed? could you have swooshed? could he have swooshed? could we have swooshed? could you have swooshed? could they have swooshed?	could I have been swooshing? could you have been swooshing? could he have been swooshing? could we have been swooshing? could you have been swooshing? could they have been swooshing?

Interro-negative form

Simple form	V-ing form
couldn't I swoosh? couldn't you swoosh? couldn't he swoosh? couldn't we swoosh? couldn't you swoosh? couldn't they swoosh?	couldn't I be swooshing? couldn't you be swooshing? couldn't he be swooshing? couldn't we be swooshing? couldn't you be swooshing? couldn't they be swooshing?
Perfect	V-ing perfect
couldn't I have swooshed? couldn't you have swooshed? couldn't he have swooshed? couldn't we have swooshed? couldn't you have swooshed? couldn't they have swooshed?	couldn't I have been swooshing? couldn't you have been swooshing? couldn't he have been swooshing? couldn't we have been swooshing? couldn't you have been swooshing? couldn't they have been swooshing?