| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [verb] [prep] a | 1100 |
|
| 2 | [verb] [been] [verb] for a | 548 |
|
| 3 | [vb base] [been] [verb] for [art] | 351 |
|
| 4 | [vb base] [be] [verb] for a | 133 |
|
