| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when the [adj] rate | 10 |
|
| 2 | when the [adj] rate | 9 |
|
| 3 | when the [noun sg] rate | 8 |
|
| 4 | when the [noun] rate | 8 |
|
| 5 | when the rate [prep] | 5 |
|
| 6 | when the rate [prep] | 5 |
|
