| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been known [prep] [det] year | 15 |
|
| 2 | [been] known [prep] [det] years | 15 |
|
| 3 | [been] known for [det] year | 15 |
|
| 4 | [been] known [prep] many year | 10 |
|
