| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] for [det] years in | 5 |
|
| 2 | been used for [det] year in | 5 |
|
| 3 | been [vb pp] for many year in | 5 |
|
| 4 | been [vb pp] for [det] year in | 5 |
|
