| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] known [prep] [det] year | 15 |
|
| 2 | have [been] known [prep] [det] year | 15 |
|
| 3 | [vb base] [been] known [prep] [det] year | 7 |
|
| 4 | have [been] known [prep] [det] year | 7 |
|
| 5 | has [been] known [prep] [det] year | 6 |
|
| 6 | [vb -s] [been] known [prep] [det] year | 6 |
|
