| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a very long time | 25 |
|
| 2 | [vb pp] [prep] a very long time | 25 |
|
| 3 | [vb pp] for a very long time | 22 |
|
| 4 | [vb pp] for a very long time | 22 |
|
