English verb conjugation
MUST SUBJOIN

Regular verb: subjoin - subjoined - subjoined

Affirmation

Simple form	V-ing form
I must subjoin you must subjoin he must subjoin we must subjoin you must subjoin they must subjoin	I must be subjoining you must be subjoining he must be subjoining we must be subjoining you must be subjoining they must be subjoining
Perfect	V-ing perfect
I must have subjoined you must have subjoined he must have subjoined we must have subjoined you must have subjoined they must have subjoined	I must have been subjoining you must have been subjoining he must have been subjoining we must have been subjoining you must have been subjoining they must have been subjoining

Negation

Simple form	V-ing form
I mustn't subjoin you mustn't subjoin he mustn't subjoin we mustn't subjoin you mustn't subjoin they mustn't subjoin	I mustn't be subjoining you mustn't be subjoining he mustn't be subjoining we mustn't be subjoining you mustn't be subjoining they mustn't be subjoining
Perfect	V-ing perfect
I mustn't have subjoined you mustn't have subjoined he mustn't have subjoined we mustn't have subjoined you mustn't have subjoined they mustn't have subjoined	I mustn't have been subjoining you mustn't have been subjoining he mustn't have been subjoining we mustn't have been subjoining you mustn't have been subjoining they mustn't have been subjoining

Interrogative form

Simple form	V-ing form
must I subjoin? must you subjoin? must he subjoin? must we subjoin? must you subjoin? must they subjoin?	must I be subjoining? must you be subjoining? must he be subjoining? must we be subjoining? must you be subjoining? must they be subjoining?
Perfect	V-ing perfect
must I have subjoined? must you have subjoined? must he have subjoined? must we have subjoined? must you have subjoined? must they have subjoined?	must I have been subjoining? must you have been subjoining? must he have been subjoining? must we have been subjoining? must you have been subjoining? must they have been subjoining?

Interro-negative form

Simple form	V-ing form
mustn't I subjoin? mustn't you subjoin? mustn't he subjoin? mustn't we subjoin? mustn't you subjoin? mustn't they subjoin?	mustn't I be subjoining? mustn't you be subjoining? mustn't he be subjoining? mustn't we be subjoining? mustn't you be subjoining? mustn't they be subjoining?
Perfect	V-ing perfect
mustn't I have subjoined? mustn't you have subjoined? mustn't he have subjoined? mustn't we have subjoined? mustn't you have subjoined? mustn't they have subjoined?	mustn't I have been subjoining? mustn't you have been subjoining? mustn't he have been subjoining? mustn't we have been subjoining? mustn't you have been subjoining? mustn't they have been subjoining?