must grade
Verbe régulier : grade - graded- graded
Traduction française : classer - noter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must grade
you must grade
she must grade
we must grade
you must grade
they must grade 	I must be grading
you must be grading
she must be grading
we must be grading
you must be grading
they must be grading	I must have graded
you must have graded
she must have graded
we must have graded
you must have graded
they must have graded	I must have been grading
you must have been grading
she must have been grading
we must have been grading
you must have been grading
they must have been grading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not grade
you must not grade
she must not grade
we must not grade
you must not grade
they must not grade 	I must not be grading
you must not be grading
she must not be grading
we must not be grading
you must not be grading
they must not be grading	I must not have graded
you must not have graded
she must not have graded
we must not have graded
you must not have graded
they must not have graded	I must not have been grading
you must not have been grading
she must not have been grading
we must not have been grading
you must not have been grading
they must not have been grading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I grade?
must you grade?
must she grade?
must we grade?
must you grade?
must they grade? 	must I be grading?
must you be grading?
must she be grading?
must we be grading?
must you be grading?
must they be grading? 	must I have graded?
must you have graded?
must she have graded?
must we have graded?
must you have graded?
must they have graded? 	must I have been grading?
must you have been grading?
must she have been grading?
must we have been grading?
must you have been grading?
must they have been grading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not grade?
must you not grade?
must she not grade?
must we not grade?
must you not grade?
must they not grade? 	must I not be grading?
must you not be grading?
must she not be grading?
must we not be grading?
must you not be grading?
must they not be grading? 	must I not have graded?
must you not have graded?
must she not have graded?
must we not have graded?
must you not have graded?
must they not have graded? 	must I not have been grading?
must you not have been grading?
must she not have been grading?
must we not have been grading?
must you not have been grading?
must they not have been grading?