| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [noun] [verb] | 2390 |
|
| 2 | [adv] [n mass] [verb] | 1949 |
|
| 3 | [Wh adv] [n mass] [verb] | 785 |
|
| 4 | when [n mass] [verb] | 159 |
|
