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