I can superimpose you can superimpose he can superimpose we can superimpose you can superimpose they can superimpose
V-ing form
I can be superimposing you can be superimposing he can be superimposing we can be superimposing you can be superimposing they can be superimposing
Perfect
I can have superimposed you can have superimposed he can have superimposed we can have superimposed you can have superimposed they can have superimposed
V-ing perfect
I can have been superimposing you can have been superimposing he can have been superimposing we can have been superimposing you can have been superimposing they can have been superimposing
Negation
Simple form
I cannot superimpose you cannot superimpose he cannot superimpose we cannot superimpose you cannot superimpose they cannot superimpose
V-ing form
I cannot be superimposing you cannot be superimposing he cannot be superimposing we cannot be superimposing you cannot be superimposing they cannot be superimposing
Perfect
I cannot have superimposed you cannot have superimposed he cannot have superimposed we cannot have superimposed you cannot have superimposed they cannot have superimposed
V-ing perfect
I cannot have been superimposing you cannot have been superimposing he cannot have been superimposing we cannot have been superimposing you cannot have been superimposing they cannot have been superimposing
Interrogative form
Simple form
can I superimpose? can you superimpose? can he superimpose? can we superimpose? can you superimpose? can they superimpose?
V-ing form
can I be superimposing? can you be superimposing? can he be superimposing? can we be superimposing? can you be superimposing? can they be superimposing?
Perfect
can I have superimposed? can you have superimposed? can he have superimposed? can we have superimposed? can you have superimposed? can they have superimposed?
V-ing perfect
can I have been superimposing? can you have been superimposing? can he have been superimposing? can we have been superimposing? can you have been superimposing? can they have been superimposing?
Interro-negative form
Simple form
can I not superimpose? can you not superimpose? can he not superimpose? can we not superimpose? can you not superimpose? can they not superimpose?
V-ing form
can I not be superimposing? can you not be superimposing? can he not be superimposing? can we not be superimposing? can you not be superimposing? can they not be superimposing?
Perfect
can I not have superimposed? can you not have superimposed? can he not have superimposed? can we not have superimposed? can you not have superimposed? can they not have superimposed?
V-ing perfect
can I not have been superimposing? can you not have been superimposing? can he not have been superimposing? can we not have been superimposing? can you not have been superimposing? can they not have been superimposing?