| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | known [prep] a long [noun] | 25 |
|
| 2 | known [prep] a long [noun sg] | 24 |
|
| 3 | known [prep] a long time | 23 |
|
| 4 | known [prep] a long time | 23 |
|
| 5 | known for a long [noun] | 23 |
|
