| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must [vb infin] a [noun] | 412 |
|
| 2 | [pers pn] must [vb infin] taken a | 16 |
|
| 3 | must [vb infin] taken a [noun] | 10 |
|
| 4 | [pers pn] must [vb infin] taken [noun] | 10 |
|
