| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] [noun] | 3773 |
|
| 2 | been [verb] [noun sg] | 1952 |
|
| 3 | be [verb] chairman | 134 |
|
| 4 | [be] [verb] chairman | 134 |
|
| 5 | [been] [verb] chairman | 31 |
|
| 6 | been [verb] chairman | 31 |
|
