| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] a [adj] [noun] [prep] | 8334 |
|
| 2 | must [vb infin] a [adj] [noun] | 501 |
|
| 3 | must [vb infin] a [noun] [prep] | 417 |
|
| 4 | must [vb infin] [adj] [noun] [prep] | 243 |
|
