| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [art] [noun sg] rate | 7 |
|
| 2 | should [vb infin] the [noun] rate | 7 |
|
| 3 | should [vb infin] [art] [noun] rate | 7 |
|
| 4 | should [vb infin] [art] exchange rate | 6 |
|
| 5 | should [vb infin] [art] exchange rate | 6 |
|
