English verb conjugation
COULD DECOMPOSE

Regular verb: decompose - decomposed - decomposed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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