| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] [prep] [art] [noun] | 372 |
|
| 2 | when [pron] [verb] [prep] [art] [noun] | 372 |
|
| 3 | [adv] [pron] [verb] at [art] [noun] | 263 |
|
| 4 | when [pron] [verb] at [art] [noun] | 31 |
|
