| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | through which they [modal v] [verb] | 20 |
|
| 2 | through which they [vb mod] [verb] | 20 |
|
| 3 | through which they [modal v] [vb infin] | 20 |
|
| 4 | through which they can [verb] | 11 |
|
| 5 | through which they can [verb] | 11 |
|
| 6 | through which they could [verb] | 6 |
|
| 7 | through which they could [verb] | 6 |
|
