| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [noun sg] to | 9886 |
|
| 2 | [vb -s] a [noun sg] to | 1067 |
|
| 3 | requires a [noun sg] [prep] | 245 |
|
| 4 | require a [noun sg] to | 68 |
|
| 5 | requires [art] [noun sg] to | 57 |
|
| 6 | requires a [noun] to | 22 |
|
