| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must be [pron] to do [prep] | 6 |
|
| 2 | it must be [pron] to do with | 6 |
|
| 3 | it must be [pron] to do with | 6 |
|
| 4 | it must be [pron] to do [prep] | 6 |
|
