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