must sturdy
Verbe régulier : sturdy - sturdied- sturdied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sturdy
you must sturdy
he must sturdy
we must sturdy
you must sturdy
they must sturdy 	I must be sturdying
you must be sturdying
he must be sturdying
we must be sturdying
you must be sturdying
they must be sturdying	I must have sturdied
you must have sturdied
he must have sturdied
we must have sturdied
you must have sturdied
they must have sturdied	I must have been sturdying
you must have been sturdying
he must have been sturdying
we must have been sturdying
you must have been sturdying
they must have been sturdying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not sturdy
you must not sturdy
he must not sturdy
we must not sturdy
you must not sturdy
they must not sturdy 	I must not be sturdying
you must not be sturdying
he must not be sturdying
we must not be sturdying
you must not be sturdying
they must not be sturdying	I must not have sturdied
you must not have sturdied
he must not have sturdied
we must not have sturdied
you must not have sturdied
they must not have sturdied	I must not have been sturdying
you must not have been sturdying
he must not have been sturdying
we must not have been sturdying
you must not have been sturdying
they must not have been sturdying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sturdy?
must you sturdy?
must he sturdy?
must we sturdy?
must you sturdy?
must they sturdy? 	must I be sturdying?
must you be sturdying?
must he be sturdying?
must we be sturdying?
must you be sturdying?
must they be sturdying? 	must I have sturdied?
must you have sturdied?
must he have sturdied?
must we have sturdied?
must you have sturdied?
must they have sturdied? 	must I have been sturdying?
must you have been sturdying?
must he have been sturdying?
must we have been sturdying?
must you have been sturdying?
must they have been sturdying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not sturdy?
must you not sturdy?
must he not sturdy?
must we not sturdy?
must you not sturdy?
must they not sturdy? 	must I not be sturdying?
must you not be sturdying?
must he not be sturdying?
must we not be sturdying?
must you not be sturdying?
must they not be sturdying? 	must I not have sturdied?
must you not have sturdied?
must he not have sturdied?
must we not have sturdied?
must you not have sturdied?
must they not have sturdied? 	must I not have been sturdying?
must you not have been sturdying?
must he not have been sturdying?
must we not have been sturdying?
must you not have been sturdying?
must they not have been sturdying?