I can hasten you can hasten she can hasten we can hasten you can hasten they can hasten
V-ing form
I can be hastening you can be hastening she can be hastening we can be hastening you can be hastening they can be hastening
Perfect
I can have hastened you can have hastened she can have hastened we can have hastened you can have hastened they can have hastened
V-ing perfect
I can have been hastening you can have been hastening she can have been hastening we can have been hastening you can have been hastening they can have been hastening
Negation
Simple form
I cannot hasten you cannot hasten she cannot hasten we cannot hasten you cannot hasten they cannot hasten
V-ing form
I cannot be hastening you cannot be hastening she cannot be hastening we cannot be hastening you cannot be hastening they cannot be hastening
Perfect
I cannot have hastened you cannot have hastened she cannot have hastened we cannot have hastened you cannot have hastened they cannot have hastened
V-ing perfect
I cannot have been hastening you cannot have been hastening she cannot have been hastening we cannot have been hastening you cannot have been hastening they cannot have been hastening
Interrogative form
Simple form
can I hasten? can you hasten? can she hasten? can we hasten? can you hasten? can they hasten?
V-ing form
can I be hastening? can you be hastening? can she be hastening? can we be hastening? can you be hastening? can they be hastening?
Perfect
can I have hastened? can you have hastened? can she have hastened? can we have hastened? can you have hastened? can they have hastened?
V-ing perfect
can I have been hastening? can you have been hastening? can she have been hastening? can we have been hastening? can you have been hastening? can they have been hastening?
Interro-negative form
Simple form
can I not hasten? can you not hasten? can she not hasten? can we not hasten? can you not hasten? can they not hasten?
V-ing form
can I not be hastening? can you not be hastening? can she not be hastening? can we not be hastening? can you not be hastening? can they not be hastening?
Perfect
can I not have hastened? can you not have hastened? can she not have hastened? can we not have hastened? can you not have hastened? can they not have hastened?
V-ing perfect
can I not have been hastening? can you not have been hastening? can she not have been hastening? can we not have been hastening? can you not have been hastening? can they not have been hastening?