| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been known for some time | 16 |
|
| 2 | have [be] known for some time | 16 |
|
| 3 | [verb] [been] known for some time | 16 |
|
| 4 | [verb] be known for some time | 16 |
|
| 5 | [vb -s] [be] known for some time | 11 |
|
| 6 | has [be] known for some time | 10 |
|
