| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [noun prp] [verb] [prep] | 879 |
|
| 2 | but [noun prp] [verb] [prep] | 313 |
|
| 3 | but when [noun prp] [verb] | 164 |
|
| 4 | but when [verb] [prep] | 44 |
|
