| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [pers pn] must [vb infin] | 109 |
|
| 2 | this [vb -s] [pers pn] [vb infin] | 52 |
|
| 3 | this [pers pn] must [vb infin] | 46 |
|
| 4 | this [vb -s] [pers pn] must | 18 |
|
