| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which could [verb] | 1536 |
|
| 2 | which could [vb infin] | 1534 |
|
| 3 | which [modal v] affect | 184 |
|
| 4 | which [vb mod] affect | 184 |
|
| 5 | [pron] could affect | 45 |
|
| 6 | which could affect | 27 |
|
| 7 | which could affect | 27 |
|
| 8 | [Wh det] could affect | 27 |
|
| 9 | which could affect | 27 |
|
