| singular | plural |
| Infinitive | | |
| preserve | |
| present simple | | |
| 1 | I preserve | we preserve |
| 2 | you preserve | you preserve |
| 3 | he/she/it preserves | they preserve |
| past simple | | |
| 1 | I preserved | we preserved |
| 2 | you preserved | you preserved |
| 3 | he/she/it preserved | they preserved |
| future simple | | |
| 1 | I will/shall preserve | we will/shall preserve |
| 2 | you will/shall preserve | you will/shall preserve |
| 3 | he/she/it will/shall preserve | they will/shall preserve |
| conditional simple | | |
| 1 | I would preserve | we would preserve |
| 2 | you would preserve | you would preserve |
| 3 | he/she/it would preserve | they would preserve |
| present continuous | | |
| 1 | I am preserving | we are preserving |
| 2 | you are preserving | you are preserving |
| 3 | he/she/it is preserving | they are preserving |
| past continuous | | |
| 1 | I was preserving | we were preserving |
| 2 | you were preserving | you were preserving |
| 3 | he/she/it was preserving | they were preserving |
| future continuous | | |
| 1 | I will be preserving | we will be preserving |
| 2 | you will be preserving | you will be preserving |
| 3 | he/she/it will be preserving | they will be preserving |
| conditional continuous | | |
| 1 | I would be preserving | we would be preserving |
| 2 | you would be preserving | you would be preserving |
| 3 | he/she/it would be preserving | they would be preserving |
| present perfect | | |
| 1 | I have preserved | we have preserved |
| 2 | you have preserved | you have preserved |
| 3 | he/she/it has preserved | they have preserved |
| past perfect | | |
| 1 | I had preserved | we had preserved |
| 2 | you had preserved | you had preserved |
| 3 | he/she/it had preserved | they had preserved |
| future perfect | | |
| 1 | I will have preserved | we will have preserved |
| 2 | you will have preserved | you will have preserved |
| 3 | he/she/it will have preserved | they will have preserved |
| conditional perfect | | |
| 1 | I would have preserved | we would have preserved |
| 2 | you would have preserved | you would have preserved |
| 3 | he/she/it would have preserved | they would have preserved |
