English verb conjugation
CAN DECAFFEINATE

Regular verb: decaffeinate - decaffeinated - decaffeinated

Affirmation

Simple form	V-ing form
I can decaffeinate you can decaffeinate she can decaffeinate we can decaffeinate you can decaffeinate they can decaffeinate	I can be decaffeinating you can be decaffeinating she can be decaffeinating we can be decaffeinating you can be decaffeinating they can be decaffeinating
Perfect	V-ing perfect
I can have decaffeinated you can have decaffeinated she can have decaffeinated we can have decaffeinated you can have decaffeinated they can have decaffeinated	I can have been decaffeinating you can have been decaffeinating she can have been decaffeinating we can have been decaffeinating you can have been decaffeinating they can have been decaffeinating

Negation

Simple form	V-ing form
I cannot decaffeinate you cannot decaffeinate she cannot decaffeinate we cannot decaffeinate you cannot decaffeinate they cannot decaffeinate	I cannot be decaffeinating you cannot be decaffeinating she cannot be decaffeinating we cannot be decaffeinating you cannot be decaffeinating they cannot be decaffeinating
Perfect	V-ing perfect
I cannot have decaffeinated you cannot have decaffeinated she cannot have decaffeinated we cannot have decaffeinated you cannot have decaffeinated they cannot have decaffeinated	I cannot have been decaffeinating you cannot have been decaffeinating she cannot have been decaffeinating we cannot have been decaffeinating you cannot have been decaffeinating they cannot have been decaffeinating

Interrogative form

Simple form	V-ing form
can I decaffeinate? can you decaffeinate? can she decaffeinate? can we decaffeinate? can you decaffeinate? can they decaffeinate?	can I be decaffeinating? can you be decaffeinating? can she be decaffeinating? can we be decaffeinating? can you be decaffeinating? can they be decaffeinating?
Perfect	V-ing perfect
can I have decaffeinated? can you have decaffeinated? can she have decaffeinated? can we have decaffeinated? can you have decaffeinated? can they have decaffeinated?	can I have been decaffeinating? can you have been decaffeinating? can she have been decaffeinating? can we have been decaffeinating? can you have been decaffeinating? can they have been decaffeinating?

Interro-negative form

Simple form	V-ing form
can I not decaffeinate? can you not decaffeinate? can she not decaffeinate? can we not decaffeinate? can you not decaffeinate? can they not decaffeinate?	can I not be decaffeinating? can you not be decaffeinating? can she not be decaffeinating? can we not be decaffeinating? can you not be decaffeinating? can they not be decaffeinating?
Perfect	V-ing perfect
can I not have decaffeinated? can you not have decaffeinated? can she not have decaffeinated? can we not have decaffeinated? can you not have decaffeinated? can they not have decaffeinated?	can I not have been decaffeinating? can you not have been decaffeinating? can she not have been decaffeinating? can we not have been decaffeinating? can you not have been decaffeinating? can they not have been decaffeinating?