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