| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at which it [vb -s] | 26 |
|
| 2 | [noun sg] at which it [vb -s] | 24 |
|
| 3 | rate at which it [vb -s] | 11 |
|
| 4 | rate at which it [vb -s] | 10 |
|
