| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [verb] a [noun] | 789 |
|
| 2 | if it [verb] a [noun] | 146 |
|
| 3 | if it [vb -s] a [noun] | 92 |
|
| 4 | if it [vb -s] [verb] a | 39 |
|
| 5 | if it [vb -s] [verb] [noun] | 30 |
|
