| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [be] | 94784 |
|
| 2 | [subord] it [be] | 40924 |
|
| 3 | when [pron] [be] | 21323 |
|
| 4 | when it [be] | 3592 |
|
