| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [prep] a [noun] | 861 |
|
| 2 | [vb -s] [prep] a [noun] [conj] | 598 |
|
| 3 | it [prep] a [noun] [conj] | 463 |
|
| 4 | it [vb -s] [prep] [noun] [conj] | 272 |
|
| 5 | it [vb -s] a [noun] [conj] | 169 |
|
