English verb conjugation
MUST REPAIR

Regular verb: repair - repaired - repaired

Affirmation

Simple form	V-ing form
I must repair you must repair she must repair we must repair you must repair they must repair	I must be repairing you must be repairing she must be repairing we must be repairing you must be repairing they must be repairing
Perfect	V-ing perfect
I must have repaired you must have repaired she must have repaired we must have repaired you must have repaired they must have repaired	I must have been repairing you must have been repairing she must have been repairing we must have been repairing you must have been repairing they must have been repairing

Negation

Simple form	V-ing form
I must not repair you must not repair she must not repair we must not repair you must not repair they must not repair	I must not be repairing you must not be repairing she must not be repairing we must not be repairing you must not be repairing they must not be repairing
Perfect	V-ing perfect
I must not have repaired you must not have repaired she must not have repaired we must not have repaired you must not have repaired they must not have repaired	I must not have been repairing you must not have been repairing she must not have been repairing we must not have been repairing you must not have been repairing they must not have been repairing

Interrogative form

Simple form	V-ing form
must I repair? must you repair? must she repair? must we repair? must you repair? must they repair?	must I be repairing? must you be repairing? must she be repairing? must we be repairing? must you be repairing? must they be repairing?
Perfect	V-ing perfect
must I have repaired? must you have repaired? must she have repaired? must we have repaired? must you have repaired? must they have repaired?	must I have been repairing? must you have been repairing? must she have been repairing? must we have been repairing? must you have been repairing? must they have been repairing?

Interro-negative form

Simple form	V-ing form
must I not repair? must you not repair? must she not repair? must we not repair? must you not repair? must they not repair?	must I not be repairing? must you not be repairing? must she not be repairing? must we not be repairing? must you not be repairing? must they not be repairing?
Perfect	V-ing perfect
must I not have repaired? must you not have repaired? must she not have repaired? must we not have repaired? must you not have repaired? must they not have repaired?	must I not have been repairing? must you not have been repairing? must she not have been repairing? must we not have been repairing? must you not have been repairing? must they not have been repairing?