| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [been] [verb] [prep] a | 534 |
|
| 2 | [been] [verb] [prep] be a | 74 |
|
| 3 | [vb infin] [been] [verb] [prep] be | 24 |
|
| 4 | [vb infin] [verb] [prep] be a | 23 |
|
