| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] for [noun] by | 45 |
|
| 2 | been [verb] for [noun sg] by | 31 |
|
| 3 | been [verb] for [noun pl] by | 11 |
|
| 4 | been [verb] for year by | 5 |
|
| 5 | been [verb] for years by | 5 |
|
