English verb conjugation
COULD COMPOSE

Regular verb: compose - composed - composed

Affirmation

Simple form	V-ing form
I could compose you could compose he could compose we could compose you could compose they could compose	I could be composing you could be composing he could be composing we could be composing you could be composing they could be composing
Perfect	V-ing perfect
I could have composed you could have composed he could have composed we could have composed you could have composed they could have composed	I could have been composing you could have been composing he could have been composing we could have been composing you could have been composing they could have been composing

Negation

Simple form	V-ing form
I couldn't compose you couldn't compose he couldn't compose we couldn't compose you couldn't compose they couldn't compose	I couldn't be composing you couldn't be composing he couldn't be composing we couldn't be composing you couldn't be composing they couldn't be composing
Perfect	V-ing perfect
I couldn't have composed you couldn't have composed he couldn't have composed we couldn't have composed you couldn't have composed they couldn't have composed	I couldn't have been composing you couldn't have been composing he couldn't have been composing we couldn't have been composing you couldn't have been composing they couldn't have been composing

Interrogative form

Simple form	V-ing form
could I compose? could you compose? could he compose? could we compose? could you compose? could they compose?	could I be composing? could you be composing? could he be composing? could we be composing? could you be composing? could they be composing?
Perfect	V-ing perfect
could I have composed? could you have composed? could he have composed? could we have composed? could you have composed? could they have composed?	could I have been composing? could you have been composing? could he have been composing? could we have been composing? could you have been composing? could they have been composing?

Interro-negative form

Simple form	V-ing form
couldn't I compose? couldn't you compose? couldn't he compose? couldn't we compose? couldn't you compose? couldn't they compose?	couldn't I be composing? couldn't you be composing? couldn't he be composing? couldn't we be composing? couldn't you be composing? couldn't they be composing?
Perfect	V-ing perfect
couldn't I have composed? couldn't you have composed? couldn't he have composed? couldn't we have composed? couldn't you have composed? couldn't they have composed?	couldn't I have been composing? couldn't you have been composing? couldn't he have been composing? couldn't we have been composing? couldn't you have been composing? couldn't they have been composing?