I don't grade you don't grade he doesn't grade we don't grade you don't grade they don't grade
Present continuous
I'm not grading you aren't grading he isn't grading we aren't grading you aren't grading they aren't grading
Preterite
I didn't grade you didn't grade he didn't grade we didn't grade you didn't grade they didn't grade
Preterite continuous
I wasn't grading you weren't grading he wasn't grading we weren't grading you weren't grading they weren't grading
Present perfect
I haven't graded you haven't graded he hasn't graded we haven't graded you haven't graded they haven't graded
Present perfect continuous
I haven't been grading you haven't been grading he hasn't been grading we haven't been grading you haven't been grading they haven't been grading
Pluperfect
I hadn't graded you hadn't graded he hadn't graded we hadn't graded you hadn't graded they hadn't graded
Pluperfect continuous
I hadn't been grading you hadn't been grading he hadn't been grading we hadn't been grading you hadn't been grading they hadn't been grading
Future
I won't grade you won't grade he won't grade we won't grade you won't grade they won't grade
Future continuous
I won't be grading you won't be grading he won't be grading we won't be grading you won't be grading they won't be grading
Future perfect
I won't have graded you won't have graded he won't have graded we won't have graded you won't have graded they won't have graded
Future perfect continuous
I won't have been grading you won't have been grading he won't have been grading we won't have been grading you won't have been grading they won't have been grading
Conditional
Present
I wouldn't grade you wouldn't grade he wouldn't grade we wouldn't grade you wouldn't grade they wouldn't grade
Present continuous
I wouldn't be grading you wouldn't be grading he wouldn't be grading we wouldn't be grading you wouldn't be grading they wouldn't be grading
Past
I wouldn't have graded you wouldn't have graded he wouldn't have graded we wouldn't have graded you wouldn't have graded they wouldn't have graded
Past continuous
I wouldn't have been grading you wouldn't have been grading he wouldn't have been grading we wouldn't have been grading you wouldn't have been grading they wouldn't have been grading