| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which must be [verb] for | 16 |
|
| 2 | which must be [verb] for | 16 |
|
| 3 | which must be [vb pp] for | 16 |
|
| 4 | which must be pay for | 5 |
|
| 5 | which must be paid for | 5 |
|
