| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [adv] for [det] | 26 |
|
| 2 | [been] [vb pp] [adv] for some | 6 |
|
| 3 | [been] [vb pp] [adv] for this | 6 |
|
| 4 | [been] used [adv] for [det] | 5 |
|
