| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [noun] to | 18551 |
|
| 2 | requires a [adj] [noun] | 408 |
|
| 3 | requires [adj] [noun] to | 27 |
|
| 4 | requires a [noun] to | 22 |
|
