I could bestow you could bestow she could bestow we could bestow you could bestow they could bestow
V-ing form
I could be bestowing you could be bestowing she could be bestowing we could be bestowing you could be bestowing they could be bestowing
Perfect
I could have bestowed you could have bestowed she could have bestowed we could have bestowed you could have bestowed they could have bestowed
V-ing perfect
I could have been bestowing you could have been bestowing she could have been bestowing we could have been bestowing you could have been bestowing they could have been bestowing
Negation
Simple form
I couldn't bestow you couldn't bestow she couldn't bestow we couldn't bestow you couldn't bestow they couldn't bestow
V-ing form
I couldn't be bestowing you couldn't be bestowing she couldn't be bestowing we couldn't be bestowing you couldn't be bestowing they couldn't be bestowing
Perfect
I couldn't have bestowed you couldn't have bestowed she couldn't have bestowed we couldn't have bestowed you couldn't have bestowed they couldn't have bestowed
V-ing perfect
I couldn't have been bestowing you couldn't have been bestowing she couldn't have been bestowing we couldn't have been bestowing you couldn't have been bestowing they couldn't have been bestowing
Interrogative form
Simple form
could I bestow? could you bestow? could she bestow? could we bestow? could you bestow? could they bestow?
V-ing form
could I be bestowing? could you be bestowing? could she be bestowing? could we be bestowing? could you be bestowing? could they be bestowing?
Perfect
could I have bestowed? could you have bestowed? could she have bestowed? could we have bestowed? could you have bestowed? could they have bestowed?
V-ing perfect
could I have been bestowing? could you have been bestowing? could she have been bestowing? could we have been bestowing? could you have been bestowing? could they have been bestowing?
Interro-negative form
Simple form
couldn't I bestow? couldn't you bestow? couldn't she bestow? couldn't we bestow? couldn't you bestow? couldn't they bestow?
V-ing form
couldn't I be bestowing? couldn't you be bestowing? couldn't she be bestowing? couldn't we be bestowing? couldn't you be bestowing? couldn't they be bestowing?
Perfect
couldn't I have bestowed? couldn't you have bestowed? couldn't she have bestowed? couldn't we have bestowed? couldn't you have bestowed? couldn't they have bestowed?
V-ing perfect
couldn't I have been bestowing? couldn't you have been bestowing? couldn't she have been bestowing? couldn't we have been bestowing? couldn't you have been bestowing? couldn't they have been bestowing?