| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | rate of [noun] [prep] [art] | 443 |
|
| 2 | rate of [noun sg] [prep] [art] | 403 |
|
| 3 | [noun] of return [prep] [art] | 56 |
|
| 4 | rate [prep] return [prep] [art] | 43 |
|
| 5 | rate [prep] return [prep] [art] | 43 |
|
| 6 | rate of return [prep] [art] | 43 |
|
| 7 | rate of return [prep] [art] | 43 |
|
