| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] when it [verb] | 223 |
|
| 2 | [prep] [noun] when it [vb past] | 103 |
|
| 3 | [prep] [noun] [conj] it became | 31 |
|
| 4 | [prep] [noun] [subord] it became | 24 |
|
| 5 | [prep] [noun] when [pron] became | 21 |
|
| 6 | [prep] [noun] when it become | 14 |
|
| 7 | [prep] [noun] when it became | 10 |
|
| 8 | [prep] [noun] when it became | 10 |
|
