I must boost you must boost she must boost we must boost you must boost they must boost
Forma con V-ing
I must be boosting you must be boosting she must be boosting we must be boosting you must be boosting they must be boosting
Perfecto
I must have boosted you must have boosted she must have boosted we must have boosted you must have boosted they must have boosted
Perfecto con V-ing
I must have been boosting you must have been boosting she must have been boosting we must have been boosting you must have been boosting they must have been boosting
Negación
Forma simple
I must not boost you must not boost she must not boost we must not boost you must not boost they must not boost
Forma con V-ing
I must not be boosting you must not be boosting she must not be boosting we must not be boosting you must not be boosting they must not be boosting
Perfecto
I must not have boosted you must not have boosted she must not have boosted we must not have boosted you must not have boosted they must not have boosted
Perfecto con V-ing
I must not have been boosting you must not have been boosting she must not have been boosting we must not have been boosting you must not have been boosting they must not have been boosting
Forma interrogativa
Forma simple
must I boost? must you boost? must she boost? must we boost? must you boost? must they boost?
Forma con V-ing
must I be boosting? must you be boosting? must she be boosting? must we be boosting? must you be boosting? must they be boosting?
Perfecto
must I have boosted? must you have boosted? must she have boosted? must we have boosted? must you have boosted? must they have boosted?
Perfecto con V-ing
must I have been boosting? must you have been boosting? must she have been boosting? must we have been boosting? must you have been boosting? must they have been boosting?
Forma interro-negativa
Forma simple
must I not boost? must you not boost? must she not boost? must we not boost? must you not boost? must they not boost?
Forma con V-ing
must I not be boosting? must you not be boosting? must she not be boosting? must we not be boosting? must you not be boosting? must they not be boosting?
Perfecto
must I not have boosted? must you not have boosted? must she not have boosted? must we not have boosted? must you not have boosted? must they not have boosted?
Perfecto con V-ing
must I not have been boosting? must you not have been boosting? must she not have been boosting? must we not have been boosting? must you not have been boosting? must they not have been boosting?