I could beshrew you could beshrew he could beshrew we could beshrew you could beshrew they could beshrew
V-ing form
I could be beshrewing you could be beshrewing he could be beshrewing we could be beshrewing you could be beshrewing they could be beshrewing
Perfect
I could have beshrewed you could have beshrewed he could have beshrewed we could have beshrewed you could have beshrewed they could have beshrewed
V-ing perfect
I could have been beshrewing you could have been beshrewing he could have been beshrewing we could have been beshrewing you could have been beshrewing they could have been beshrewing
Negation
Simple form
I couldn't beshrew you couldn't beshrew he couldn't beshrew we couldn't beshrew you couldn't beshrew they couldn't beshrew
V-ing form
I couldn't be beshrewing you couldn't be beshrewing he couldn't be beshrewing we couldn't be beshrewing you couldn't be beshrewing they couldn't be beshrewing
Perfect
I couldn't have beshrewed you couldn't have beshrewed he couldn't have beshrewed we couldn't have beshrewed you couldn't have beshrewed they couldn't have beshrewed
V-ing perfect
I couldn't have been beshrewing you couldn't have been beshrewing he couldn't have been beshrewing we couldn't have been beshrewing you couldn't have been beshrewing they couldn't have been beshrewing
Interrogative form
Simple form
could I beshrew? could you beshrew? could he beshrew? could we beshrew? could you beshrew? could they beshrew?
V-ing form
could I be beshrewing? could you be beshrewing? could he be beshrewing? could we be beshrewing? could you be beshrewing? could they be beshrewing?
Perfect
could I have beshrewed? could you have beshrewed? could he have beshrewed? could we have beshrewed? could you have beshrewed? could they have beshrewed?
V-ing perfect
could I have been beshrewing? could you have been beshrewing? could he have been beshrewing? could we have been beshrewing? could you have been beshrewing? could they have been beshrewing?
Interro-negative form
Simple form
couldn't I beshrew? couldn't you beshrew? couldn't he beshrew? couldn't we beshrew? couldn't you beshrew? couldn't they beshrew?
V-ing form
couldn't I be beshrewing? couldn't you be beshrewing? couldn't he be beshrewing? couldn't we be beshrewing? couldn't you be beshrewing? couldn't they be beshrewing?
Perfect
couldn't I have beshrewed? couldn't you have beshrewed? couldn't he have beshrewed? couldn't we have beshrewed? couldn't you have beshrewed? couldn't they have beshrewed?
V-ing perfect
couldn't I have been beshrewing? couldn't you have been beshrewing? couldn't he have been beshrewing? couldn't we have been beshrewing? couldn't you have been beshrewing? couldn't they have been beshrewing?