| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [been] [verb] | 7120 |
|
| 2 | [verb] [been] [verb] for | 5399 |
|
| 3 | [modal v] [verb] [verb] for | 1303 |
|
| 4 | [modal v] [verb] [been] for | 62 |
|
