English verb conjugation
MUST DESERT

Regular verb: desert - deserted - deserted

Affirmation

Simple form	V-ing form
I must desert you must desert she must desert we must desert you must desert they must desert	I must be deserting you must be deserting she must be deserting we must be deserting you must be deserting they must be deserting
Perfect	V-ing perfect
I must have deserted you must have deserted she must have deserted we must have deserted you must have deserted they must have deserted	I must have been deserting you must have been deserting she must have been deserting we must have been deserting you must have been deserting they must have been deserting

Negation

Simple form	V-ing form
I must not desert you must not desert she must not desert we must not desert you must not desert they must not desert	I must not be deserting you must not be deserting she must not be deserting we must not be deserting you must not be deserting they must not be deserting
Perfect	V-ing perfect
I must not have deserted you must not have deserted she must not have deserted we must not have deserted you must not have deserted they must not have deserted	I must not have been deserting you must not have been deserting she must not have been deserting we must not have been deserting you must not have been deserting they must not have been deserting

Interrogative form

Simple form	V-ing form
must I desert? must you desert? must she desert? must we desert? must you desert? must they desert?	must I be deserting? must you be deserting? must she be deserting? must we be deserting? must you be deserting? must they be deserting?
Perfect	V-ing perfect
must I have deserted? must you have deserted? must she have deserted? must we have deserted? must you have deserted? must they have deserted?	must I have been deserting? must you have been deserting? must she have been deserting? must we have been deserting? must you have been deserting? must they have been deserting?

Interro-negative form

Simple form	V-ing form
must I not desert? must you not desert? must she not desert? must we not desert? must you not desert? must they not desert?	must I not be deserting? must you not be deserting? must she not be deserting? must we not be deserting? must you not be deserting? must they not be deserting?
Perfect	V-ing perfect
must I not have deserted? must you not have deserted? must she not have deserted? must we not have deserted? must you not have deserted? must they not have deserted?	must I not have been deserting? must you not have been deserting? must she not have been deserting? must we not have been deserting? must you not have been deserting? must they not have been deserting?