| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have known for some time | 16 |
|
| 2 | [vb base] known for some time | 9 |
|
| 3 | have known for some time | 8 |
|
| 4 | had known for some time | 6 |
|
| 5 | [vb past] known for some time | 6 |
|
