| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [prep] [art] time when | 12 |
|
| 2 | [modal v] [verb] [prep] a [noun] when | 7 |
|
| 3 | [modal v] [verb] [prep] a [noun sg] when | 7 |
|
| 4 | [modal v] [verb] [prep] a time [adv] | 6 |
|
| 5 | [modal v] [verb] [prep] a time when | 5 |
|
