English verb conjugation
CAN DECEASE

Regular verb: decease - deceased - deceased

Affirmation

Simple form	V-ing form
I can decease you can decease he can decease we can decease you can decease they can decease	I can be deceasing you can be deceasing he can be deceasing we can be deceasing you can be deceasing they can be deceasing
Perfect	V-ing perfect
I can have deceased you can have deceased he can have deceased we can have deceased you can have deceased they can have deceased	I can have been deceasing you can have been deceasing he can have been deceasing we can have been deceasing you can have been deceasing they can have been deceasing

Negation

Simple form	V-ing form
I cannot decease you cannot decease he cannot decease we cannot decease you cannot decease they cannot decease	I cannot be deceasing you cannot be deceasing he cannot be deceasing we cannot be deceasing you cannot be deceasing they cannot be deceasing
Perfect	V-ing perfect
I cannot have deceased you cannot have deceased he cannot have deceased we cannot have deceased you cannot have deceased they cannot have deceased	I cannot have been deceasing you cannot have been deceasing he cannot have been deceasing we cannot have been deceasing you cannot have been deceasing they cannot have been deceasing

Interrogative form

Simple form	V-ing form
can I decease? can you decease? can he decease? can we decease? can you decease? can they decease?	can I be deceasing? can you be deceasing? can he be deceasing? can we be deceasing? can you be deceasing? can they be deceasing?
Perfect	V-ing perfect
can I have deceased? can you have deceased? can he have deceased? can we have deceased? can you have deceased? can they have deceased?	can I have been deceasing? can you have been deceasing? can he have been deceasing? can we have been deceasing? can you have been deceasing? can they have been deceasing?

Interro-negative form

Simple form	V-ing form
can I not decease? can you not decease? can he not decease? can we not decease? can you not decease? can they not decease?	can I not be deceasing? can you not be deceasing? can he not be deceasing? can we not be deceasing? can you not be deceasing? can they not be deceasing?
Perfect	V-ing perfect
can I not have deceased? can you not have deceased? can he not have deceased? can we not have deceased? can you not have deceased? can they not have deceased?	can I not have been deceasing? can you not have been deceasing? can he not have been deceasing? can we not have been deceasing? can you not have been deceasing? can they not have been deceasing?