I must gift you must gift he must gift we must gift you must gift they must gift
V-ing form
I must be gifting you must be gifting he must be gifting we must be gifting you must be gifting they must be gifting
Perfect
I must have gifted you must have gifted he must have gifted we must have gifted you must have gifted they must have gifted
V-ing perfect
I must have been gifting you must have been gifting he must have been gifting we must have been gifting you must have been gifting they must have been gifting
Negation
Simple form
I must not gift you must not gift he must not gift we must not gift you must not gift they must not gift
V-ing form
I must not be gifting you must not be gifting he must not be gifting we must not be gifting you must not be gifting they must not be gifting
Perfect
I must not have gifted you must not have gifted he must not have gifted we must not have gifted you must not have gifted they must not have gifted
V-ing perfect
I must not have been gifting you must not have been gifting he must not have been gifting we must not have been gifting you must not have been gifting they must not have been gifting
Interrogative form
Simple form
must I gift? must you gift? must he gift? must we gift? must you gift? must they gift?
V-ing form
must I be gifting? must you be gifting? must he be gifting? must we be gifting? must you be gifting? must they be gifting?
Perfect
must I have gifted? must you have gifted? must he have gifted? must we have gifted? must you have gifted? must they have gifted?
V-ing perfect
must I have been gifting? must you have been gifting? must he have been gifting? must we have been gifting? must you have been gifting? must they have been gifting?
Interro-negative form
Simple form
must I not gift? must you not gift? must he not gift? must we not gift? must you not gift? must they not gift?
V-ing form
must I not be gifting? must you not be gifting? must he not be gifting? must we not be gifting? must you not be gifting? must they not be gifting?
Perfect
must I not have gifted? must you not have gifted? must he not have gifted? must we not have gifted? must you not have gifted? must they not have gifted?
V-ing perfect
must I not have been gifting? must you not have been gifting? must he not have been gifting? must we not have been gifting? must you not have been gifting? must they not have been gifting?