| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] for a | 1707 |
|
| 2 | [vb base] [been] a | 671 |
|
| 3 | [been] for a | 96 |
|
| 4 | [vb base] [been] for | 95 |
|
