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