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 can't decease you can't decease he can't decease we can't decease you can't decease they can't decease	I can't be deceasing you can't be deceasing he can't be deceasing we can't be deceasing you can't be deceasing they can't be deceasing
Perfect	V-ing perfect
I can't have deceased you can't have deceased he can't have deceased we can't have deceased you can't have deceased they can't have deceased	I can't have been deceasing you can't have been deceasing he can't have been deceasing we can't have been deceasing you can't have been deceasing they can't 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't I decease? can't you decease? can't he decease? can't we decease? can't you decease? can't they decease?	can't I be deceasing? can't you be deceasing? can't he be deceasing? can't we be deceasing? can't you be deceasing? can't they be deceasing?
Perfect	V-ing perfect
can't I have deceased? can't you have deceased? can't he have deceased? can't we have deceased? can't you have deceased? can't they have deceased?	can't I have been deceasing? can't you have been deceasing? can't he have been deceasing? can't we have been deceasing? can't you have been deceasing? can't they have been deceasing?