| 单数 | 复数 |
| 动词不定式 | | |
| extract | |
| present simple | | |
| 一般现在时 | | |
| 1 | I extract | we extract |
| 2 | you extract | you extract |
| 3 | he/she/it extracts | they extract |
| past simple | | |
| extract的过去式 | | |
| 1 | I extracted | we extracted |
| 2 | you extracted | you extracted |
| 3 | he/she/it extracted | they extracted |
| future simple | | |
| 一般将来时 | | |
| 1 | I will/shall extract | we will/shall extract |
| 2 | you will/shall extract | you will/shall extract |
| 3 | he/she/it will/shall extract | they will/shall extract |
| conditional simple | | |
| 一般将来过去时 | | |
| 1 | I would extract | we would extract |
| 2 | you would extract | you would extract |
| 3 | he/she/it would extract | they would extract |
| present continuous | | |
| 现在进行时 | | |
| 1 | I am extracting | we are extracting |
| 2 | you are extracting | you are extracting |
| 3 | he/she/it is extracting | they are extracting |
| past continuous | | |
| 过去进行时 | | |
| 1 | I was extracting | we were extracting |
| 2 | you were extracting | you were extracting |
| 3 | he/she/it was extracting | they were extracting |
| future continuous | | |
| 将来进行时 | | |
| 1 | I will be extracting | we will be extracting |
| 2 | you will be extracting | you will be extracting |
| 3 | he/she/it will be extracting | they will be extracting |
| conditional continuous | | |
| 将来过去进行时 | | |
| 1 | I would be extracting | we would be extracting |
| 2 | you would be extracting | you would be extracting |
| 3 | he/she/it would be extracting | they would be extracting |
| present perfect | | |
| 现在完成时 | | |
| 1 | I have extracted | we have extracted |
| 2 | you have extracted | you have extracted |
| 3 | he/she/it has extracted | they have extracted |
| past perfect | | |
| 过去完成时 | | |
| 1 | I had extracted | we had extracted |
| 2 | you had extracted | you had extracted |
| 3 | he/she/it had extracted | they had extracted |
| future perfect | | |
| 将来完成时 | | |
| 1 | I will have extracted | we will have extracted |
| 2 | you will have extracted | you will have extracted |
| 3 | he/she/it will have extracted | they will have extracted |
| conditional perfect | | |
| 将来过去完成时 | | |
| 1 | I would have extracted | we would have extracted |
| 2 | you would have extracted | you would have extracted |
| 3 | he/she/it would have extracted | they would have extracted |
