| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] for some | 251 |
|
| 2 | be [vb pp] for years | 59 |
|
| 3 | [vb pp] for some years | 39 |
|
| 4 | be [vb pp] some years | 29 |
|
| 5 | be for some years | 13 |
|
