English verb conjugation
SHALL DECEASE

Regular verb: decease - deceased - deceased

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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