| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [n mass] [verb] [adv] [vb infin] | 8 |
|
| 2 | when [n mass] [verb] not [vb infin] | 7 |
|
| 3 | when [n mass] [verb] [not/n't] [vb infin] | 7 |
|
