must grin
Verbe régulier : grin - grinned- grinned
Traduction française : sourire 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must grin
you must grin
she must grin
we must grin
you must grin
they must grin 	I must be grinning
you must be grinning
she must be grinning
we must be grinning
you must be grinning
they must be grinning	I must have grinned
you must have grinned
she must have grinned
we must have grinned
you must have grinned
they must have grinned	I must have been grinning
you must have been grinning
she must have been grinning
we must have been grinning
you must have been grinning
they must have been grinning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not grin
you must not grin
she must not grin
we must not grin
you must not grin
they must not grin 	I must not be grinning
you must not be grinning
she must not be grinning
we must not be grinning
you must not be grinning
they must not be grinning	I must not have grinned
you must not have grinned
she must not have grinned
we must not have grinned
you must not have grinned
they must not have grinned	I must not have been grinning
you must not have been grinning
she must not have been grinning
we must not have been grinning
you must not have been grinning
they must not have been grinning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I grin?
must you grin?
must she grin?
must we grin?
must you grin?
must they grin? 	must I be grinning?
must you be grinning?
must she be grinning?
must we be grinning?
must you be grinning?
must they be grinning? 	must I have grinned?
must you have grinned?
must she have grinned?
must we have grinned?
must you have grinned?
must they have grinned? 	must I have been grinning?
must you have been grinning?
must she have been grinning?
must we have been grinning?
must you have been grinning?
must they have been grinning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not grin?
must you not grin?
must she not grin?
must we not grin?
must you not grin?
must they not grin? 	must I not be grinning?
must you not be grinning?
must she not be grinning?
must we not be grinning?
must you not be grinning?
must they not be grinning? 	must I not have grinned?
must you not have grinned?
must she not have grinned?
must we not have grinned?
must you not have grinned?
must they not have grinned? 	must I not have been grinning?
must you not have been grinning?
must she not have been grinning?
must we not have been grinning?
must you not have been grinning?
must they not have been grinning?