| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [verb] [prep] [art] first | 9 |
|
| 2 | when [vb pp] [prep] [art] first | 6 |
|
| 3 | when [prep] [art] first [noun] | 5 |
|
| 4 | when [prep] [art] first [noun sg] | 5 |
|
