| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] a [noun] when | 34 |
|
| 2 | [modal v] [vb infin] [art] time when | 32 |
|
| 3 | [modal v] [vb infin] [art] time when | 32 |
|
| 4 | [modal v] [vb infin] a time when | 25 |
|
| 5 | [modal v] [verb] a time when | 25 |
|
| 6 | [modal v] [vb infin] a time [adv] | 25 |
|
