| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [vb pp] | 82786 |
|
| 2 | be [vb pp] about | 889 |
|
| 3 | [prep] be about | 140 |
|
| 4 | [prep] [vb pp] about | 14 |
|
