I must boost you must boost he must boost we must boost you must boost they must boost
Forme en V-ing
I must be boosting you must be boosting he must be boosting we must be boosting you must be boosting they must be boosting
Perfect
I must have boosted you must have boosted he must have boosted we must have boosted you must have boosted they must have boosted
Perfect en V-ing
I must have been boosting you must have been boosting he must have been boosting we must have been boosting you must have been boosting they must have been boosting
Négation
Forme simple
I must not boost you must not boost he must not boost we must not boost you must not boost they must not boost
Forme en V-ing
I must not be boosting you must not be boosting he must not be boosting we must not be boosting you must not be boosting they must not be boosting
Perfect
I must not have boosted you must not have boosted he must not have boosted we must not have boosted you must not have boosted they must not have boosted
Perfect en V-ing
I must not have been boosting you must not have been boosting he must not have been boosting we must not have been boosting you must not have been boosting they must not have been boosting
Forme interrogative
Forme simple
must I boost? must you boost? must he boost? must we boost? must you boost? must they boost?
Forme en V-ing
must I be boosting? must you be boosting? must he be boosting? must we be boosting? must you be boosting? must they be boosting?
Perfect
must I have boosted? must you have boosted? must he have boosted? must we have boosted? must you have boosted? must they have boosted?
Perfect en V-ing
must I have been boosting? must you have been boosting? must he have been boosting? must we have been boosting? must you have been boosting? must they have been boosting?
Forme interro-négative
Forme simple
must I not boost? must you not boost? must he not boost? must we not boost? must you not boost? must they not boost?
Forme en V-ing
must I not be boosting? must you not be boosting? must he not be boosting? must we not be boosting? must you not be boosting? must they not be boosting?
Perfect
must I not have boosted? must you not have boosted? must he not have boosted? must we not have boosted? must you not have boosted? must they not have boosted?
Perfect en V-ing
must I not have been boosting? must you not have been boosting? must he not have been boosting? must we not have been boosting? must you not have been boosting? must they not have been boosting?