| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had held since | 26 |
|
| 2 | had changed since | 23 |
|
| 3 | had known since | 9 |
|
| 4 | had had since | 8 |
|
| 5 | had existed since | 7 |
|
| 6 | had passed since | 7 |
|
| 7 | had happened since | 7 |
|
| 8 | had seen since | 6 |
|
| 9 | had doubled since | 5 |
|
| 10 | had done since | 5 |
|
| 11 | had met since | 5 |
|
