| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it a [adj] [noun] | 1661 |
|
| 2 | requires a [adj] [noun] | 452 |
|
| 3 | it requires [adj] [noun] | 80 |
|
| 4 | it requires a [adj] | 74 |
|
| 5 | it requires a [noun] | 49 |
|
