I can bend you can bend he can bend we can bend you can bend they can bend
V-ing form
I can be bending you can be bending he can be bending we can be bending you can be bending they can be bending
Perfect
I can have bent you can have bent he can have bent we can have bent you can have bent they can have bent
V-ing perfect
I can have been bending you can have been bending he can have been bending we can have been bending you can have been bending they can have been bending
Negation
Simple form
I can't bend you can't bend he can't bend we can't bend you can't bend they can't bend
V-ing form
I can't be bending you can't be bending he can't be bending we can't be bending you can't be bending they can't be bending
Perfect
I can't have bent you can't have bent he can't have bent we can't have bent you can't have bent they can't have bent
V-ing perfect
I can't have been bending you can't have been bending he can't have been bending we can't have been bending you can't have been bending they can't have been bending
Interrogative form
Simple form
can I bend? can you bend? can he bend? can we bend? can you bend? can they bend?
V-ing form
can I be bending? can you be bending? can he be bending? can we be bending? can you be bending? can they be bending?
Perfect
can I have bent? can you have bent? can he have bent? can we have bent? can you have bent? can they have bent?
V-ing perfect
can I have been bending? can you have been bending? can he have been bending? can we have been bending? can you have been bending? can they have been bending?
Interro-negative form
Simple form
can't I bend? can't you bend? can't he bend? can't we bend? can't you bend? can't they bend?
V-ing form
can't I be bending? can't you be bending? can't he be bending? can't we be bending? can't you be bending? can't they be bending?
Perfect
can't I have bent? can't you have bent? can't he have bent? can't we have bent? can't you have bent? can't they have bent?
V-ing perfect
can't I have been bending? can't you have been bending? can't he have been bending? can't we have been bending? can't you have been bending? can't they have been bending?