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 couldn't snip you couldn't snip he couldn't snip we couldn't snip you couldn't snip they couldn't snip	I couldn't be snipping you couldn't be snipping he couldn't be snipping we couldn't be snipping you couldn't be snipping they couldn't be snipping
Perfect	V-ing perfect
I couldn't have snipped you couldn't have snipped he couldn't have snipped we couldn't have snipped you couldn't have snipped they couldn't have snipped	I couldn't have been snipping you couldn't have been snipping he couldn't have been snipping we couldn't have been snipping you couldn't have been snipping they couldn't 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
couldn't I snip? couldn't you snip? couldn't he snip? couldn't we snip? couldn't you snip? couldn't they snip?	couldn't I be snipping? couldn't you be snipping? couldn't he be snipping? couldn't we be snipping? couldn't you be snipping? couldn't they be snipping?
Perfect	V-ing perfect
couldn't I have snipped? couldn't you have snipped? couldn't he have snipped? couldn't we have snipped? couldn't you have snipped? couldn't they have snipped?	couldn't I have been snipping? couldn't you have been snipping? couldn't he have been snipping? couldn't we have been snipping? couldn't you have been snipping? couldn't they have been snipping?