English verb conjugation
COULD IMPERIL

Regular verb: imperil - imperilled - imperilled

Affirmation

Simple form	V-ing form
I could imperil you could imperil he could imperil we could imperil you could imperil they could imperil	I could be imperilling you could be imperilling he could be imperilling we could be imperilling you could be imperilling they could be imperilling
Perfect	V-ing perfect
I could have imperilled you could have imperilled he could have imperilled we could have imperilled you could have imperilled they could have imperilled	I could have been imperilling you could have been imperilling he could have been imperilling we could have been imperilling you could have been imperilling they could have been imperilling

Negation

Simple form	V-ing form
I could not imperil you could not imperil he could not imperil we could not imperil you could not imperil they could not imperil	I could not be imperilling you could not be imperilling he could not be imperilling we could not be imperilling you could not be imperilling they could not be imperilling
Perfect	V-ing perfect
I could not have imperilled you could not have imperilled he could not have imperilled we could not have imperilled you could not have imperilled they could not have imperilled	I could not have been imperilling you could not have been imperilling he could not have been imperilling we could not have been imperilling you could not have been imperilling they could not have been imperilling

Interrogative form

Simple form	V-ing form
could I imperil? could you imperil? could he imperil? could we imperil? could you imperil? could they imperil?	could I be imperilling? could you be imperilling? could he be imperilling? could we be imperilling? could you be imperilling? could they be imperilling?
Perfect	V-ing perfect
could I have imperilled? could you have imperilled? could he have imperilled? could we have imperilled? could you have imperilled? could they have imperilled?	could I have been imperilling? could you have been imperilling? could he have been imperilling? could we have been imperilling? could you have been imperilling? could they have been imperilling?

Interro-negative form

Simple form	V-ing form
could I not imperil? could you not imperil? could he not imperil? could we not imperil? could you not imperil? could they not imperil?	could I not be imperilling? could you not be imperilling? could he not be imperilling? could we not be imperilling? could you not be imperilling? could they not be imperilling?
Perfect	V-ing perfect
could I not have imperilled? could you not have imperilled? could he not have imperilled? could we not have imperilled? could you not have imperilled? could they not have imperilled?	could I not have been imperilling? could you not have been imperilling? could he not have been imperilling? could we not have been imperilling? could you not have been imperilling? could they not have been imperilling?