| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] it [be] [verb] | 546 |
|
| 2 | [noun] when it [be] [verb] | 497 |
|
| 3 | [prep] [noun] when it [verb] | 223 |
|
| 4 | [prep] [noun] when it [be] | 139 |
|
