| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he had been [v-ing] for | 74 |
|
| 2 | he had been waiting for | 13 |
|
| 3 | he had been looking for | 8 |
|
| 4 | he had been working for | 6 |
|
| 5 | he had been searching for | 5 |
|
