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