| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if it [is] [verb] | 1344 |
|
| 2 | [conj] it [is] [to-vb] | 409 |
|
| 3 | if [pron] [is] [to-vb] | 320 |
|
| 4 | if it [be] [to-vb] | 288 |
|
