I don't collapse you don't collapse he doesn't collapse we don't collapse you don't collapse they don't collapse
Present continuous
I'm not collapsing you aren't collapsing he isn't collapsing we aren't collapsing you aren't collapsing they aren't collapsing
Preterite
I didn't collapse you didn't collapse he didn't collapse we didn't collapse you didn't collapse they didn't collapse
Preterite continuous
I wasn't collapsing you weren't collapsing he wasn't collapsing we weren't collapsing you weren't collapsing they weren't collapsing
Present perfect
I haven't collapsed you haven't collapsed he hasn't collapsed we haven't collapsed you haven't collapsed they haven't collapsed
Present perfect continuous
I haven't been collapsing you haven't been collapsing he hasn't been collapsing we haven't been collapsing you haven't been collapsing they haven't been collapsing
Pluperfect
I hadn't collapsed you hadn't collapsed he hadn't collapsed we hadn't collapsed you hadn't collapsed they hadn't collapsed
Pluperfect continuous
I hadn't been collapsing you hadn't been collapsing he hadn't been collapsing we hadn't been collapsing you hadn't been collapsing they hadn't been collapsing
Future
I won't collapse you won't collapse he won't collapse we won't collapse you won't collapse they won't collapse
Future continuous
I won't be collapsing you won't be collapsing he won't be collapsing we won't be collapsing you won't be collapsing they won't be collapsing
Future perfect
I won't have collapsed you won't have collapsed he won't have collapsed we won't have collapsed you won't have collapsed they won't have collapsed
Future perfect continuous
I won't have been collapsing you won't have been collapsing he won't have been collapsing we won't have been collapsing you won't have been collapsing they won't have been collapsing
Conditional
Present
I wouldn't collapse you wouldn't collapse he wouldn't collapse we wouldn't collapse you wouldn't collapse they wouldn't collapse
Present continuous
I wouldn't be collapsing you wouldn't be collapsing he wouldn't be collapsing we wouldn't be collapsing you wouldn't be collapsing they wouldn't be collapsing
Past
I wouldn't have collapsed you wouldn't have collapsed he wouldn't have collapsed we wouldn't have collapsed you wouldn't have collapsed they wouldn't have collapsed
Past continuous
I wouldn't have been collapsing you wouldn't have been collapsing he wouldn't have been collapsing we wouldn't have been collapsing you wouldn't have been collapsing they wouldn't have been collapsing
Imperative
Imperative
do not collapse Let's not collapse do not collapse