| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we must [vb infin] [adj] | 379 |
|
| 2 | we must [vb infin] at | 42 |
|
| 3 | must [vb infin] at [adj] | 35 |
|
| 4 | we [vb infin] at [adj] | 18 |
|
