English verb conjugation
MUST SIGNPOST

Regular verb: signpost - signposted - signposted

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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