English verb conjugation
COULD SIGNPOST

Regular verb: signpost - signposted - signposted

Affirmation

Simple form	V-ing form
I could signpost you could signpost he could signpost we could signpost you could signpost they could signpost	I could be signposting you could be signposting he could be signposting we could be signposting you could be signposting they could be signposting
Perfect	V-ing perfect
I could have signposted you could have signposted he could have signposted we could have signposted you could have signposted they could have signposted	I could have been signposting you could have been signposting he could have been signposting we could have been signposting you could have been signposting they could have been signposting

Negation

Simple form	V-ing form
I could not signpost you could not signpost he could not signpost we could not signpost you could not signpost they could not signpost	I could not be signposting you could not be signposting he could not be signposting we could not be signposting you could not be signposting they could not be signposting
Perfect	V-ing perfect
I could not have signposted you could not have signposted he could not have signposted we could not have signposted you could not have signposted they could not have signposted	I could not have been signposting you could not have been signposting he could not have been signposting we could not have been signposting you could not have been signposting they could not have been signposting

Interrogative form

Simple form	V-ing form
could I signpost? could you signpost? could he signpost? could we signpost? could you signpost? could they signpost?	could I be signposting? could you be signposting? could he be signposting? could we be signposting? could you be signposting? could they be signposting?
Perfect	V-ing perfect
could I have signposted? could you have signposted? could he have signposted? could we have signposted? could you have signposted? could they have signposted?	could I have been signposting? could you have been signposting? could he have been signposting? could we have been signposting? could you have been signposting? could they have been signposting?

Interro-negative form

Simple form	V-ing form
could I not signpost? could you not signpost? could he not signpost? could we not signpost? could you not signpost? could they not signpost?	could I not be signposting? could you not be signposting? could he not be signposting? could we not be signposting? could you not be signposting? could they not be signposting?
Perfect	V-ing perfect
could I not have signposted? could you not have signposted? could he not have signposted? could we not have signposted? could you not have signposted? could they not have signposted?	could I not have been signposting? could you not have been signposting? could he not have been signposting? could we not have been signposting? could you not have been signposting? could they not have been signposting?