English verb conjugation
MUST PREDECEASE

Regular verb: predecease - predeceased - predeceased

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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