| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [vb infin] a [noun] | 1295 |
|
| 2 | must [vb infin] a [noun] | 898 |
|
| 3 | [coord] must [vb infin] [noun] | 35 |
|
| 4 | [coord] must [vb infin] a | 30 |
|
