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