| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [noun] | 1529 |
|
| 2 | be [vb pp] chairman | 125 |
|
| 3 | [be] [vb pp] chairman | 125 |
|
| 4 | been [verb] chairman | 31 |
|
| 5 | [been] [vb pp] chairman | 30 |
|
