English verb conjugation
CAN DESPAIR

Regular verb: despair - despaired - despaired

Affirmation

Simple form	V-ing form
I can despair you can despair he can despair we can despair you can despair they can despair	I can be despairing you can be despairing he can be despairing we can be despairing you can be despairing they can be despairing
Perfect	V-ing perfect
I can have despaired you can have despaired he can have despaired we can have despaired you can have despaired they can have despaired	I can have been despairing you can have been despairing he can have been despairing we can have been despairing you can have been despairing they can have been despairing

Negation

Simple form	V-ing form
I cannot despair you cannot despair he cannot despair we cannot despair you cannot despair they cannot despair	I cannot be despairing you cannot be despairing he cannot be despairing we cannot be despairing you cannot be despairing they cannot be despairing
Perfect	V-ing perfect
I cannot have despaired you cannot have despaired he cannot have despaired we cannot have despaired you cannot have despaired they cannot have despaired	I cannot have been despairing you cannot have been despairing he cannot have been despairing we cannot have been despairing you cannot have been despairing they cannot have been despairing

Interrogative form

Simple form	V-ing form
can I despair? can you despair? can he despair? can we despair? can you despair? can they despair?	can I be despairing? can you be despairing? can he be despairing? can we be despairing? can you be despairing? can they be despairing?
Perfect	V-ing perfect
can I have despaired? can you have despaired? can he have despaired? can we have despaired? can you have despaired? can they have despaired?	can I have been despairing? can you have been despairing? can he have been despairing? can we have been despairing? can you have been despairing? can they have been despairing?

Interro-negative form

Simple form	V-ing form
can I not despair? can you not despair? can he not despair? can we not despair? can you not despair? can they not despair?	can I not be despairing? can you not be despairing? can he not be despairing? can we not be despairing? can you not be despairing? can they not be despairing?
Perfect	V-ing perfect
can I not have despaired? can you not have despaired? can he not have despaired? can we not have despaired? can you not have despaired? can they not have despaired?	can I not have been despairing? can you not have been despairing? can he not have been despairing? can we not have been despairing? can you not have been despairing? can they not have been despairing?