I must vein you must vein she must vein we must vein you must vein they must vein
Forma con V-ing
I must be veining you must be veining she must be veining we must be veining you must be veining they must be veining
Perfecto
I must have veined you must have veined she must have veined we must have veined you must have veined they must have veined
Perfecto con V-ing
I must have been veining you must have been veining she must have been veining we must have been veining you must have been veining they must have been veining
Negación
Forma simple
I must not vein you must not vein she must not vein we must not vein you must not vein they must not vein
Forma con V-ing
I must not be veining you must not be veining she must not be veining we must not be veining you must not be veining they must not be veining
Perfecto
I must not have veined you must not have veined she must not have veined we must not have veined you must not have veined they must not have veined
Perfecto con V-ing
I must not have been veining you must not have been veining she must not have been veining we must not have been veining you must not have been veining they must not have been veining
Forma interrogativa
Forma simple
must I vein? must you vein? must she vein? must we vein? must you vein? must they vein?
Forma con V-ing
must I be veining? must you be veining? must she be veining? must we be veining? must you be veining? must they be veining?
Perfecto
must I have veined? must you have veined? must she have veined? must we have veined? must you have veined? must they have veined?
Perfecto con V-ing
must I have been veining? must you have been veining? must she have been veining? must we have been veining? must you have been veining? must they have been veining?
Forma interro-negativa
Forma simple
must I not vein? must you not vein? must she not vein? must we not vein? must you not vein? must they not vein?
Forma con V-ing
must I not be veining? must you not be veining? must she not be veining? must we not be veining? must you not be veining? must they not be veining?
Perfecto
must I not have veined? must you not have veined? must she not have veined? must we not have veined? must you not have veined? must they not have veined?
Perfecto con V-ing
must I not have been veining? must you not have been veining? must she not have been veining? must we not have been veining? must you not have been veining? must they not have been veining?