English verb conjugation
COULD RUFFLE

Regular verb: ruffle - ruffled - ruffled

Affirmation

Simple form	V-ing form
I could ruffle you could ruffle he could ruffle we could ruffle you could ruffle they could ruffle	I could be ruffling you could be ruffling he could be ruffling we could be ruffling you could be ruffling they could be ruffling
Perfect	V-ing perfect
I could have ruffled you could have ruffled he could have ruffled we could have ruffled you could have ruffled they could have ruffled	I could have been ruffling you could have been ruffling he could have been ruffling we could have been ruffling you could have been ruffling they could have been ruffling

Negation

Simple form	V-ing form
I could not ruffle you could not ruffle he could not ruffle we could not ruffle you could not ruffle they could not ruffle	I could not be ruffling you could not be ruffling he could not be ruffling we could not be ruffling you could not be ruffling they could not be ruffling
Perfect	V-ing perfect
I could not have ruffled you could not have ruffled he could not have ruffled we could not have ruffled you could not have ruffled they could not have ruffled	I could not have been ruffling you could not have been ruffling he could not have been ruffling we could not have been ruffling you could not have been ruffling they could not have been ruffling

Interrogative form

Simple form	V-ing form
could I ruffle? could you ruffle? could he ruffle? could we ruffle? could you ruffle? could they ruffle?	could I be ruffling? could you be ruffling? could he be ruffling? could we be ruffling? could you be ruffling? could they be ruffling?
Perfect	V-ing perfect
could I have ruffled? could you have ruffled? could he have ruffled? could we have ruffled? could you have ruffled? could they have ruffled?	could I have been ruffling? could you have been ruffling? could he have been ruffling? could we have been ruffling? could you have been ruffling? could they have been ruffling?

Interro-negative form

Simple form	V-ing form
could I not ruffle? could you not ruffle? could he not ruffle? could we not ruffle? could you not ruffle? could they not ruffle?	could I not be ruffling? could you not be ruffling? could he not be ruffling? could we not be ruffling? could you not be ruffling? could they not be ruffling?
Perfect	V-ing perfect
could I not have ruffled? could you not have ruffled? could he not have ruffled? could we not have ruffled? could you not have ruffled? could they not have ruffled?	could I not have been ruffling? could you not have been ruffling? could he not have been ruffling? could we not have been ruffling? could you not have been ruffling? could they not have been ruffling?