| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] he 'd been doing [prep] | 5 |
|
| 2 | what he 'd been doing [prep] | 5 |
|
| 3 | [pron] he 'd been doing [prep] | 5 |
|
| 4 | what he 'd been doing [prep] | 5 |
|
