| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [noun] | 5146 |
|
| 2 | been [noun sg] | 2388 |
|
| 3 | be chairman | 381 |
|
| 4 | [be] chairman | 381 |
|
| 5 | been chairman | 36 |
|
| 6 | [been] chairman | 36 |
|
