I could photocompose you could photocompose he could photocompose we could photocompose you could photocompose they could photocompose
V-ing form
I could be photocomposing you could be photocomposing he could be photocomposing we could be photocomposing you could be photocomposing they could be photocomposing
Perfect
I could have photocomposed you could have photocomposed he could have photocomposed we could have photocomposed you could have photocomposed they could have photocomposed
V-ing perfect
I could have been photocomposing you could have been photocomposing he could have been photocomposing we could have been photocomposing you could have been photocomposing they could have been photocomposing
Negation
Simple form
I couldn't photocompose you couldn't photocompose he couldn't photocompose we couldn't photocompose you couldn't photocompose they couldn't photocompose
V-ing form
I couldn't be photocomposing you couldn't be photocomposing he couldn't be photocomposing we couldn't be photocomposing you couldn't be photocomposing they couldn't be photocomposing
Perfect
I couldn't have photocomposed you couldn't have photocomposed he couldn't have photocomposed we couldn't have photocomposed you couldn't have photocomposed they couldn't have photocomposed
V-ing perfect
I couldn't have been photocomposing you couldn't have been photocomposing he couldn't have been photocomposing we couldn't have been photocomposing you couldn't have been photocomposing they couldn't have been photocomposing
Interrogative form
Simple form
could I photocompose? could you photocompose? could he photocompose? could we photocompose? could you photocompose? could they photocompose?
V-ing form
could I be photocomposing? could you be photocomposing? could he be photocomposing? could we be photocomposing? could you be photocomposing? could they be photocomposing?
Perfect
could I have photocomposed? could you have photocomposed? could he have photocomposed? could we have photocomposed? could you have photocomposed? could they have photocomposed?
V-ing perfect
could I have been photocomposing? could you have been photocomposing? could he have been photocomposing? could we have been photocomposing? could you have been photocomposing? could they have been photocomposing?
Interro-negative form
Simple form
couldn't I photocompose? couldn't you photocompose? couldn't he photocompose? couldn't we photocompose? couldn't you photocompose? couldn't they photocompose?
V-ing form
couldn't I be photocomposing? couldn't you be photocomposing? couldn't he be photocomposing? couldn't we be photocomposing? couldn't you be photocomposing? couldn't they be photocomposing?
Perfect
couldn't I have photocomposed? couldn't you have photocomposed? couldn't he have photocomposed? couldn't we have photocomposed? couldn't you have photocomposed? couldn't they have photocomposed?
V-ing perfect
couldn't I have been photocomposing? couldn't you have been photocomposing? couldn't he have been photocomposing? couldn't we have been photocomposing? couldn't you have been photocomposing? couldn't they have been photocomposing?