I must barrage you must barrage he must barrage we must barrage you must barrage they must barrage
V-ing form
I must be barraging you must be barraging he must be barraging we must be barraging you must be barraging they must be barraging
Perfect
I must have barraged you must have barraged he must have barraged we must have barraged you must have barraged they must have barraged
V-ing perfect
I must have been barraging you must have been barraging he must have been barraging we must have been barraging you must have been barraging they must have been barraging
Negation
Simple form
I must not barrage you must not barrage he must not barrage we must not barrage you must not barrage they must not barrage
V-ing form
I must not be barraging you must not be barraging he must not be barraging we must not be barraging you must not be barraging they must not be barraging
Perfect
I must not have barraged you must not have barraged he must not have barraged we must not have barraged you must not have barraged they must not have barraged
V-ing perfect
I must not have been barraging you must not have been barraging he must not have been barraging we must not have been barraging you must not have been barraging they must not have been barraging
Interrogative form
Simple form
must I barrage? must you barrage? must he barrage? must we barrage? must you barrage? must they barrage?
V-ing form
must I be barraging? must you be barraging? must he be barraging? must we be barraging? must you be barraging? must they be barraging?
Perfect
must I have barraged? must you have barraged? must he have barraged? must we have barraged? must you have barraged? must they have barraged?
V-ing perfect
must I have been barraging? must you have been barraging? must he have been barraging? must we have been barraging? must you have been barraging? must they have been barraging?
Interro-negative form
Simple form
must I not barrage? must you not barrage? must he not barrage? must we not barrage? must you not barrage? must they not barrage?
V-ing form
must I not be barraging? must you not be barraging? must he not be barraging? must we not be barraging? must you not be barraging? must they not be barraging?
Perfect
must I not have barraged? must you not have barraged? must he not have barraged? must we not have barraged? must you not have barraged? must they not have barraged?
V-ing perfect
must I not have been barraging? must you not have been barraging? must he not have been barraging? must we not have been barraging? must you not have been barraging? must they not have been barraging?