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