I must speculate you must speculate she must speculate we must speculate you must speculate they must speculate
Forme en V-ing
I must be speculating you must be speculating she must be speculating we must be speculating you must be speculating they must be speculating
Perfect
I must have speculated you must have speculated she must have speculated we must have speculated you must have speculated they must have speculated
Perfect en V-ing
I must have been speculating you must have been speculating she must have been speculating we must have been speculating you must have been speculating they must have been speculating
Négation
Forme simple
I must not speculate you must not speculate she must not speculate we must not speculate you must not speculate they must not speculate
Forme en V-ing
I must not be speculating you must not be speculating she must not be speculating we must not be speculating you must not be speculating they must not be speculating
Perfect
I must not have speculated you must not have speculated she must not have speculated we must not have speculated you must not have speculated they must not have speculated
Perfect en V-ing
I must not have been speculating you must not have been speculating she must not have been speculating we must not have been speculating you must not have been speculating they must not have been speculating
Forme interrogative
Forme simple
must I speculate? must you speculate? must she speculate? must we speculate? must you speculate? must they speculate?
Forme en V-ing
must I be speculating? must you be speculating? must she be speculating? must we be speculating? must you be speculating? must they be speculating?
Perfect
must I have speculated? must you have speculated? must she have speculated? must we have speculated? must you have speculated? must they have speculated?
Perfect en V-ing
must I have been speculating? must you have been speculating? must she have been speculating? must we have been speculating? must you have been speculating? must they have been speculating?
Forme interro-négative
Forme simple
must I not speculate? must you not speculate? must she not speculate? must we not speculate? must you not speculate? must they not speculate?
Forme en V-ing
must I not be speculating? must you not be speculating? must she not be speculating? must we not be speculating? must you not be speculating? must they not be speculating?
Perfect
must I not have speculated? must you not have speculated? must she not have speculated? must we not have speculated? must you not have speculated? must they not have speculated?
Perfect en V-ing
must I not have been speculating? must you not have been speculating? must she not have been speculating? must we not have been speculating? must you not have been speculating? must they not have been speculating?