| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we must [vb infin] | 3397 |
|
| 2 | must [not/n't] [vb infin] | 1625 |
|
| 3 | we must [not/n't] | 304 |
|
| 4 | we [not/n't] [vb infin] | 132 |
|
