I can constrict you can constrict he can constrict we can constrict you can constrict they can constrict
V-ing form
I can be constricting you can be constricting he can be constricting we can be constricting you can be constricting they can be constricting
Perfect
I can have constricted you can have constricted he can have constricted we can have constricted you can have constricted they can have constricted
V-ing perfect
I can have been constricting you can have been constricting he can have been constricting we can have been constricting you can have been constricting they can have been constricting
Negation
Simple form
I can't constrict you can't constrict he can't constrict we can't constrict you can't constrict they can't constrict
V-ing form
I can't be constricting you can't be constricting he can't be constricting we can't be constricting you can't be constricting they can't be constricting
Perfect
I can't have constricted you can't have constricted he can't have constricted we can't have constricted you can't have constricted they can't have constricted
V-ing perfect
I can't have been constricting you can't have been constricting he can't have been constricting we can't have been constricting you can't have been constricting they can't have been constricting
Interrogative form
Simple form
can I constrict? can you constrict? can he constrict? can we constrict? can you constrict? can they constrict?
V-ing form
can I be constricting? can you be constricting? can he be constricting? can we be constricting? can you be constricting? can they be constricting?
Perfect
can I have constricted? can you have constricted? can he have constricted? can we have constricted? can you have constricted? can they have constricted?
V-ing perfect
can I have been constricting? can you have been constricting? can he have been constricting? can we have been constricting? can you have been constricting? can they have been constricting?
Interro-negative form
Simple form
can't I constrict? can't you constrict? can't he constrict? can't we constrict? can't you constrict? can't they constrict?
V-ing form
can't I be constricting? can't you be constricting? can't he be constricting? can't we be constricting? can't you be constricting? can't they be constricting?
Perfect
can't I have constricted? can't you have constricted? can't he have constricted? can't we have constricted? can't you have constricted? can't they have constricted?
V-ing perfect
can't I have been constricting? can't you have been constricting? can't he have been constricting? can't we have been constricting? can't you have been constricting? can't they have been constricting?