| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [prep] a [noun sg] | 3546 |
|
| 2 | [vb pp] [prep] a first [noun sg] | 53 |
|
| 3 | been [vb pp] [prep] first [noun sg] | 6 |
|
| 4 | been [vb pp] [prep] a first | 5 |
|
