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