| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have be [vb pp] | 747 |
|
| 2 | should be [vb pp] for | 686 |
|
| 3 | have be [vb pp] for | 285 |
|
| 4 | should have [vb pp] for | 41 |
|
