| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [been] [vb pp] | 7726 |
|
| 2 | [vb infin] [vb pp] a | 3566 |
|
| 3 | [vb infin] [been] a | 2413 |
|
| 4 | [been] [vb pp] a | 1485 |
|
