| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [to-vb] been the first | 7 |
|
| 2 | [be] [vb pp] [to-vb] been the first | 7 |
|
| 3 | is [vb pp] [to-vb] been the first | 5 |
|
| 4 | [is] [vb pp] [to-vb] been the first | 5 |
|
| 5 | [vb pp] [to-vb] been the first [noun] | 6 |
|
| 6 | [vb pp] [to-vb] been the first [noun sg] | 5 |
|
