English verb conjugation
MUST DECOMPOSE

Regular verb: decompose - decomposed - decomposed

Affirmation

Simple form	V-ing form
I must decompose you must decompose she must decompose we must decompose you must decompose they must decompose	I must be decomposing you must be decomposing she must be decomposing we must be decomposing you must be decomposing they must be decomposing
Perfect	V-ing perfect
I must have decomposed you must have decomposed she must have decomposed we must have decomposed you must have decomposed they must have decomposed	I must have been decomposing you must have been decomposing she must have been decomposing we must have been decomposing you must have been decomposing they must have been decomposing

Negation

Simple form	V-ing form
I must not decompose you must not decompose she must not decompose we must not decompose you must not decompose they must not decompose	I must not be decomposing you must not be decomposing she must not be decomposing we must not be decomposing you must not be decomposing they must not be decomposing
Perfect	V-ing perfect
I must not have decomposed you must not have decomposed she must not have decomposed we must not have decomposed you must not have decomposed they must not have decomposed	I must not have been decomposing you must not have been decomposing she must not have been decomposing we must not have been decomposing you must not have been decomposing they must not have been decomposing

Interrogative form

Simple form	V-ing form
must I decompose? must you decompose? must she decompose? must we decompose? must you decompose? must they decompose?	must I be decomposing? must you be decomposing? must she be decomposing? must we be decomposing? must you be decomposing? must they be decomposing?
Perfect	V-ing perfect
must I have decomposed? must you have decomposed? must she have decomposed? must we have decomposed? must you have decomposed? must they have decomposed?	must I have been decomposing? must you have been decomposing? must she have been decomposing? must we have been decomposing? must you have been decomposing? must they have been decomposing?

Interro-negative form

Simple form	V-ing form
must I not decompose? must you not decompose? must she not decompose? must we not decompose? must you not decompose? must they not decompose?	must I not be decomposing? must you not be decomposing? must she not be decomposing? must we not be decomposing? must you not be decomposing? must they not be decomposing?
Perfect	V-ing perfect
must I not have decomposed? must you not have decomposed? must she not have decomposed? must we not have decomposed? must you not have decomposed? must they not have decomposed?	must I not have been decomposing? must you not have been decomposing? must she not have been decomposing? must we not have been decomposing? must you not have been decomposing? must they not have been decomposing?