
Regular verb: preserve - preserved - preserved
Present | Present continuous | Preterite | Preterite continuous | 
| I don't preserve you don't preserve he doesn't preserve we don't preserve you don't preserve they don't preserve  | I'm not preserving you aren't preserving he isn't preserving we aren't preserving you aren't preserving they aren't preserving  | I didn't preserve you didn't preserve he didn't preserve we didn't preserve you didn't preserve they didn't preserve  | I wasn't preserving you weren't preserving he wasn't preserving we weren't preserving you weren't preserving they weren't preserving  | 
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous | 
| I haven't preserved you haven't preserved he hasn't preserved we haven't preserved you haven't preserved they haven't preserved  | I haven't  been preserving you haven't been preserving he hasn't been preserving we haven't been preserving you haven't been preserving they haven't been preserving  | I hadn't preserved you hadn't preserved he hadn't preserved we hadn't preserved you hadn't preserved they hadn't preserved  | I hadn't been preserving you hadn't been preserving he hadn't been preserving we hadn't been preserving you hadn't been preserving they hadn't been preserving  | 
Future | Future continuous | Future perfect | Future perfect continuous | 
| I won't preserve you won't preserve he won't preserve we won't preserve you won't preserve they won't preserve  | I won't be preserving you won't be preserving he won't be preserving we won't be preserving you won't be preserving they won't be preserving  | I won't have preserved you won't have preserved he won't have preserved we won't have preserved you won't have preserved they won't have preserved  | I won't have been preserving you won't have been preserving he won't have been preserving we won't have been preserving you won't have been preserving they won't have been preserving  | 
Present | Present continuous | Past | Past continuous | 
| I wouldn't preserve you wouldn't preserve he wouldn't preserve we wouldn't preserve you wouldn't preserve they wouldn't preserve  | I wouldn't be preserving you wouldn't be preserving he wouldn't be preserving we wouldn't be preserving you wouldn't be preserving they wouldn't be preserving  | I wouldn't have preserved you wouldn't have preserved he wouldn't have preserved we wouldn't have preserved you wouldn't have preserved they wouldn't have preserved  | I wouldn't have been preserving you wouldn't have been preserving he wouldn't have been preserving we wouldn't have been preserving you wouldn't have been preserving they wouldn't have been preserving  | 
Infinitive | Imperative | 
Infinitive | Imperative | ||
| to preserve | do not preserve Let's not preserve do not preserve  | 
Present | Past | ||
| preserving | preserved |