| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which he had [been] [v-ing] for | 5 |
|
| 2 | which he had [be] [v-ing] for | 5 |
|
| 3 | which he had been [v-ing] for | 5 |
|
| 4 | which he had be [v-ing] for | 5 |
|
