| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [noun] of | 938 |
|
| 2 | been [noun sg] of | 623 |
|
| 3 | be chairman of | 281 |
|
| 4 | [be] chairman of | 281 |
|
| 5 | been chairman [prep] | 33 |
|
| 6 | been chairman of | 29 |
|
| 7 | [been] chairman of | 29 |
|
