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