| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] a | 671 |
|
| 2 | [vb base] [been] there | 212 |
|
| 3 | [been] there a | 46 |
|
| 4 | [vb base] there a | 18 |
|
