I can suppose you can suppose she can suppose we can suppose you can suppose they can suppose
V-ing form
I can be supposing you can be supposing she can be supposing we can be supposing you can be supposing they can be supposing
Perfect
I can have supposed you can have supposed she can have supposed we can have supposed you can have supposed they can have supposed
V-ing perfect
I can have been supposing you can have been supposing she can have been supposing we can have been supposing you can have been supposing they can have been supposing
Negation
Simple form
I can't suppose you can't suppose she can't suppose we can't suppose you can't suppose they can't suppose
V-ing form
I can't be supposing you can't be supposing she can't be supposing we can't be supposing you can't be supposing they can't be supposing
Perfect
I can't have supposed you can't have supposed she can't have supposed we can't have supposed you can't have supposed they can't have supposed
V-ing perfect
I can't have been supposing you can't have been supposing she can't have been supposing we can't have been supposing you can't have been supposing they can't have been supposing
Interrogative form
Simple form
can I suppose? can you suppose? can she suppose? can we suppose? can you suppose? can they suppose?
V-ing form
can I be supposing? can you be supposing? can she be supposing? can we be supposing? can you be supposing? can they be supposing?
Perfect
can I have supposed? can you have supposed? can she have supposed? can we have supposed? can you have supposed? can they have supposed?
V-ing perfect
can I have been supposing? can you have been supposing? can she have been supposing? can we have been supposing? can you have been supposing? can they have been supposing?
Interro-negative form
Simple form
can't I suppose? can't you suppose? can't she suppose? can't we suppose? can't you suppose? can't they suppose?
V-ing form
can't I be supposing? can't you be supposing? can't she be supposing? can't we be supposing? can't you be supposing? can't they be supposing?
Perfect
can't I have supposed? can't you have supposed? can't she have supposed? can't we have supposed? can't you have supposed? can't they have supposed?
V-ing perfect
can't I have been supposing? can't you have been supposing? can't she have been supposing? can't we have been supposing? can't you have been supposing? can't they have been supposing?