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