English verb conjugation
COULD SNIP

Regular verb: snip - snipped - snipped

Affirmation

Simple form	V-ing form
I could snip you could snip he could snip we could snip you could snip they could snip	I could be snipping you could be snipping he could be snipping we could be snipping you could be snipping they could be snipping
Perfect	V-ing perfect
I could have snipped you could have snipped he could have snipped we could have snipped you could have snipped they could have snipped	I could have been snipping you could have been snipping he could have been snipping we could have been snipping you could have been snipping they could have been snipping

Negation

Simple form	V-ing form
I could not snip you could not snip he could not snip we could not snip you could not snip they could not snip	I could not be snipping you could not be snipping he could not be snipping we could not be snipping you could not be snipping they could not be snipping
Perfect	V-ing perfect
I could not have snipped you could not have snipped he could not have snipped we could not have snipped you could not have snipped they could not have snipped	I could not have been snipping you could not have been snipping he could not have been snipping we could not have been snipping you could not have been snipping they could not have been snipping

Interrogative form

Simple form	V-ing form
could I snip? could you snip? could he snip? could we snip? could you snip? could they snip?	could I be snipping? could you be snipping? could he be snipping? could we be snipping? could you be snipping? could they be snipping?
Perfect	V-ing perfect
could I have snipped? could you have snipped? could he have snipped? could we have snipped? could you have snipped? could they have snipped?	could I have been snipping? could you have been snipping? could he have been snipping? could we have been snipping? could you have been snipping? could they have been snipping?

Interro-negative form

Simple form	V-ing form
could I not snip? could you not snip? could he not snip? could we not snip? could you not snip? could they not snip?	could I not be snipping? could you not be snipping? could he not be snipping? could we not be snipping? could you not be snipping? could they not be snipping?
Perfect	V-ing perfect
could I not have snipped? could you not have snipped? could he not have snipped? could we not have snipped? could you not have snipped? could they not have snipped?	could I not have been snipping? could you not have been snipping? could he not have been snipping? could we not have been snipping? could you not have been snipping? could they not have been snipping?