| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | environment in [Wh det] [pron] [modal v] [vb infin] | 7 |
|
| 2 | environment in which [pron] [modal v] [vb infin] | 7 |
|
| 3 | environment in [Wh det] [pron] [vb mod] [vb infin] | 7 |
|
| 4 | environment in [Wh det] [pers pn] [modal v] [vb infin] | 7 |
|
| 5 | environment in [Wh det] they [modal v] [vb infin] | 5 |
|
| 6 | environment in [Wh det] they [modal v] [vb infin] | 5 |
|
