| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be charge at [art] rate | 6 |
|
| 2 | [be] charge at [art] rate | 6 |
|
| 3 | [be] charged at [art] rate | 6 |
|
| 4 | [be] charge at [art] rate | 6 |
|
