| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] what [pron] [verb] | 2540 |
|
| 2 | [conj] [pron] [pron] [vb past] | 2355 |
|
| 3 | [conj] [Wh det] [pron] [vb past] | 1145 |
|
| 4 | [conj] what [pron] [vb past] | 959 |
|
