| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [pron] [adv] | 1128 |
|
| 2 | must do [pron] | 169 |
|
| 3 | must do [adv] | 92 |
|
| 4 | must [pron] [adv] | 28 |
|
