English verb conjugation
MUST GEM

Regular verb: gem - gemed - gemed

Affirmation

Simple form	V-ing form
I must gem you must gem he must gem we must gem you must gem they must gem	I must be geming you must be geming he must be geming we must be geming you must be geming they must be geming
Perfect	V-ing perfect
I must have gemed you must have gemed he must have gemed we must have gemed you must have gemed they must have gemed	I must have been geming you must have been geming he must have been geming we must have been geming you must have been geming they must have been geming

Negation

Simple form	V-ing form
I must not gem you must not gem he must not gem we must not gem you must not gem they must not gem	I must not be geming you must not be geming he must not be geming we must not be geming you must not be geming they must not be geming
Perfect	V-ing perfect
I must not have gemed you must not have gemed he must not have gemed we must not have gemed you must not have gemed they must not have gemed	I must not have been geming you must not have been geming he must not have been geming we must not have been geming you must not have been geming they must not have been geming

Interrogative form

Simple form	V-ing form
must I gem? must you gem? must he gem? must we gem? must you gem? must they gem?	must I be geming? must you be geming? must he be geming? must we be geming? must you be geming? must they be geming?
Perfect	V-ing perfect
must I have gemed? must you have gemed? must he have gemed? must we have gemed? must you have gemed? must they have gemed?	must I have been geming? must you have been geming? must he have been geming? must we have been geming? must you have been geming? must they have been geming?

Interro-negative form

Simple form	V-ing form
must I not gem? must you not gem? must he not gem? must we not gem? must you not gem? must they not gem?	must I not be geming? must you not be geming? must he not be geming? must we not be geming? must you not be geming? must they not be geming?
Perfect	V-ing perfect
must I not have gemed? must you not have gemed? must he not have gemed? must we not have gemed? must you not have gemed? must they not have gemed?	must I not have been geming? must you not have been geming? must he not have been geming? must we not have been geming? must you not have been geming? must they not have been geming?