| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] to [be] important | 7 |
|
| 2 | [been] [vb pp] to be important | 7 |
|
| 3 | [been] [vb pp] to [be] important | 7 |
|
| 4 | [been] [vb pp] to be important | 7 |
|
