| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been known [prep] [noun] | 19 |
|
| 2 | has [been] known [prep] [noun] | 19 |
|
| 3 | has [been] known for [noun] | 12 |
|
| 4 | has [been] known for [noun] | 12 |
|
| 5 | has [been] known [prep] [noun pl] | 11 |
|
