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