| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have a knock-on effect | 6 |
|
| 2 | could have a knock-on effect | 6 |
|
| 3 | could have a knock-on [noun] | 6 |
|
| 4 | could have a knock-on [noun sg] | 6 |
|
