| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] have been [vb pp] for [noun] | 14 |
|
| 2 | [n mass] have been [vb pp] for [noun sg] | 7 |
|
| 3 | [n mass] has been [vb pp] for [noun] | 7 |
|
