| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [noun] [prep] a long time | 14 |
|
| 2 | [vb pp] [noun] for a long time | 14 |
|
| 3 | [vb pp] [noun prp] [prep] a long time | 9 |
|
| 4 | known [noun] [prep] a long time | 6 |
|
