I may grade you may grade he may grade we may grade you may grade they may grade
Forme en V-ing
I may be grading you may be grading he may be grading we may be grading you may be grading they may be grading
Perfect
I may have graded you may have graded he may have graded we may have graded you may have graded they may have graded
Perfect en V-ing
I may have been grading you may have been grading he may have been grading we may have been grading you may have been grading they may have been grading
Négation
Forme simple
I mayn't grade you mayn't grade he mayn't grade we mayn't grade you mayn't grade they mayn't grade
Forme en V-ing
I mayn't be grading you mayn't be grading he mayn't be grading we mayn't be grading you mayn't be grading they mayn't be grading
Perfect
I mayn't have graded you mayn't have graded he mayn't have graded we mayn't have graded you mayn't have graded they mayn't have graded
Perfect en V-ing
I mayn't have been grading you mayn't have been grading he mayn't have been grading we mayn't have been grading you mayn't have been grading they mayn't have been grading
Forme interrogative
Forme simple
may I grade? may you grade? may he grade? may we grade? may you grade? may they grade?
Forme en V-ing
may I be grading? may you be grading? may he be grading? may we be grading? may you be grading? may they be grading?
Perfect
may I have graded? may you have graded? may he have graded? may we have graded? may you have graded? may they have graded?
Perfect en V-ing
may I have been grading? may you have been grading? may he have been grading? may we have been grading? may you have been grading? may they have been grading?
Forme interro-négative
Forme simple
mayn't I grade? mayn't you grade? mayn't he grade? mayn't we grade? mayn't you grade? mayn't they grade?
Forme en V-ing
mayn't I be grading? mayn't you be grading? mayn't he be grading? mayn't we be grading? mayn't you be grading? mayn't they be grading?
Perfect
mayn't I have graded? mayn't you have graded? mayn't he have graded? mayn't we have graded? mayn't you have graded? mayn't they have graded?
Perfect en V-ing
mayn't I have been grading? mayn't you have been grading? mayn't he have been grading? mayn't we have been grading? mayn't you have been grading? mayn't they have been grading?