must sty
Verbe régulier : sty - stied- stied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sty
you must sty
he must sty
we must sty
you must sty
they must sty 	I must be stying
you must be stying
he must be stying
we must be stying
you must be stying
they must be stying	I must have stied
you must have stied
he must have stied
we must have stied
you must have stied
they must have stied	I must have been stying
you must have been stying
he must have been stying
we must have been stying
you must have been stying
they must have been stying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not sty
you must not sty
he must not sty
we must not sty
you must not sty
they must not sty 	I must not be stying
you must not be stying
he must not be stying
we must not be stying
you must not be stying
they must not be stying	I must not have stied
you must not have stied
he must not have stied
we must not have stied
you must not have stied
they must not have stied	I must not have been stying
you must not have been stying
he must not have been stying
we must not have been stying
you must not have been stying
they must not have been stying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sty?
must you sty?
must he sty?
must we sty?
must you sty?
must they sty? 	must I be stying?
must you be stying?
must he be stying?
must we be stying?
must you be stying?
must they be stying? 	must I have stied?
must you have stied?
must he have stied?
must we have stied?
must you have stied?
must they have stied? 	must I have been stying?
must you have been stying?
must he have been stying?
must we have been stying?
must you have been stying?
must they have been stying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not sty?
must you not sty?
must he not sty?
must we not sty?
must you not sty?
must they not sty? 	must I not be stying?
must you not be stying?
must he not be stying?
must we not be stying?
must you not be stying?
must they not be stying? 	must I not have stied?
must you not have stied?
must he not have stied?
must we not have stied?
must you not have stied?
must they not have stied? 	must I not have been stying?
must you not have been stying?
must he not have been stying?
must we not have been stying?
must you not have been stying?
must they not have been stying?