shall predecease
Regular verb: predecease - predeceased- predeceased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall predecease
you shall predecease
he shall predecease
we shall predecease
you shall predecease
they shall predecease 	I shall be predeceasing
you shall be predeceasing
he shall be predeceasing
we shall be predeceasing
you shall be predeceasing
they shall be predeceasing	I shall have predeceased
you shall have predeceased
he shall have predeceased
we shall have predeceased
you shall have predeceased
they shall have predeceased	I shall have been predeceasing
you shall have been predeceasing
he shall have been predeceasing
we shall have been predeceasing
you shall have been predeceasing
they shall have been predeceasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not predecease
you shall not predecease
he shall not predecease
we shall not predecease
you shall not predecease
they shall not predecease 	I shall not be predeceasing
you shall not be predeceasing
he shall not be predeceasing
we shall not be predeceasing
you shall not be predeceasing
they shall not be predeceasing	I shall not have predeceased
you shall not have predeceased
he shall not have predeceased
we shall not have predeceased
you shall not have predeceased
they shall not have predeceased	I shall not have been predeceasing
you shall not have been predeceasing
he shall not have been predeceasing
we shall not have been predeceasing
you shall not have been predeceasing
they shall not have been predeceasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I predecease?
shall you predecease?
shall he predecease?
shall we predecease?
shall you predecease?
shall they predecease? 	shall I be predeceasing?
shall you be predeceasing?
shall he be predeceasing?
shall we be predeceasing?
shall you be predeceasing?
shall they be predeceasing? 	shall I have predeceased?
shall you have predeceased?
shall he have predeceased?
shall we have predeceased?
shall you have predeceased?
shall they have predeceased? 	shall I have been predeceasing?
shall you have been predeceasing?
shall he have been predeceasing?
shall we have been predeceasing?
shall you have been predeceasing?
shall they have been predeceasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not predecease?
shall you not predecease?
shall he not predecease?
shall we not predecease?
shall you not predecease?
shall they not predecease? 	shall I not be predeceasing?
shall you not be predeceasing?
shall he not be predeceasing?
shall we not be predeceasing?
shall you not be predeceasing?
shall they not be predeceasing? 	shall I not have predeceased?
shall you not have predeceased?
shall he not have predeceased?
shall we not have predeceased?
shall you not have predeceased?
shall they not have predeceased? 	shall I not have been predeceasing?
shall you not have been predeceasing?
shall he not have been predeceasing?
shall we not have been predeceasing?
shall you not have been predeceasing?
shall they not have been predeceasing?