English verb conjugation
MUST LAVE

Regular verb: lave - laved - laved

Affirmation

Simple form	V-ing form
I must lave you must lave she must lave we must lave you must lave they must lave	I must be laving you must be laving she must be laving we must be laving you must be laving they must be laving
Perfect	V-ing perfect
I must have laved you must have laved she must have laved we must have laved you must have laved they must have laved	I must have been laving you must have been laving she must have been laving we must have been laving you must have been laving they must have been laving

Negation

Simple form	V-ing form
I must not lave you must not lave she must not lave we must not lave you must not lave they must not lave	I must not be laving you must not be laving she must not be laving we must not be laving you must not be laving they must not be laving
Perfect	V-ing perfect
I must not have laved you must not have laved she must not have laved we must not have laved you must not have laved they must not have laved	I must not have been laving you must not have been laving she must not have been laving we must not have been laving you must not have been laving they must not have been laving

Interrogative form

Simple form	V-ing form
must I lave? must you lave? must she lave? must we lave? must you lave? must they lave?	must I be laving? must you be laving? must she be laving? must we be laving? must you be laving? must they be laving?
Perfect	V-ing perfect
must I have laved? must you have laved? must she have laved? must we have laved? must you have laved? must they have laved?	must I have been laving? must you have been laving? must she have been laving? must we have been laving? must you have been laving? must they have been laving?

Interro-negative form

Simple form	V-ing form
must I not lave? must you not lave? must she not lave? must we not lave? must you not lave? must they not lave?	must I not be laving? must you not be laving? must she not be laving? must we not be laving? must you not be laving? must they not be laving?
Perfect	V-ing perfect
must I not have laved? must you not have laved? must she not have laved? must we not have laved? must you not have laved? must they not have laved?	must I not have been laving? must you not have been laving? must she not have been laving? must we not have been laving? must you not have been laving? must they not have been laving?