| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] to be | 18133 |
|
| 2 | [adv] to be | 6229 |
|
| 3 | [vb past] [adv] to | 5278 |
|
| 4 | [vb past] [adv] be | 193 |
|
