I must encourage you must encourage she must encourage we must encourage you must encourage they must encourage
V-ing form
I must be encouraging you must be encouraging she must be encouraging we must be encouraging you must be encouraging they must be encouraging
Perfect
I must have encouraged you must have encouraged she must have encouraged we must have encouraged you must have encouraged they must have encouraged
V-ing perfect
I must have been encouraging you must have been encouraging she must have been encouraging we must have been encouraging you must have been encouraging they must have been encouraging
Negation
Simple form
I must not encourage you must not encourage she must not encourage we must not encourage you must not encourage they must not encourage
V-ing form
I must not be encouraging you must not be encouraging she must not be encouraging we must not be encouraging you must not be encouraging they must not be encouraging
Perfect
I must not have encouraged you must not have encouraged she must not have encouraged we must not have encouraged you must not have encouraged they must not have encouraged
V-ing perfect
I must not have been encouraging you must not have been encouraging she must not have been encouraging we must not have been encouraging you must not have been encouraging they must not have been encouraging
Interrogative form
Simple form
must I encourage? must you encourage? must she encourage? must we encourage? must you encourage? must they encourage?
V-ing form
must I be encouraging? must you be encouraging? must she be encouraging? must we be encouraging? must you be encouraging? must they be encouraging?
Perfect
must I have encouraged? must you have encouraged? must she have encouraged? must we have encouraged? must you have encouraged? must they have encouraged?
V-ing perfect
must I have been encouraging? must you have been encouraging? must she have been encouraging? must we have been encouraging? must you have been encouraging? must they have been encouraging?
Interro-negative form
Simple form
must I not encourage? must you not encourage? must she not encourage? must we not encourage? must you not encourage? must they not encourage?
V-ing form
must I not be encouraging? must you not be encouraging? must she not be encouraging? must we not be encouraging? must you not be encouraging? must they not be encouraging?
Perfect
must I not have encouraged? must you not have encouraged? must she not have encouraged? must we not have encouraged? must you not have encouraged? must they not have encouraged?
V-ing perfect
must I not have been encouraging? must you not have been encouraging? must she not have been encouraging? must we not have been encouraging? must you not have been encouraging? must they not have been encouraging?