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