| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] to be a | 1538 |
|
| 2 | [adv] [vb past] to be | 1094 |
|
| 3 | [adv] to be a | 1010 |
|
| 4 | [adv] [vb past] to a | 333 |
|
