| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there has been [prep] [adj] year | 5 |
|
| 2 | there has be [prep] [adj] year | 5 |
|
| 3 | there has be [prep] [adj] year | 5 |
|
| 4 | there has be [prep] [adj] years | 5 |
|
