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