| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] to be | 3591 |
|
| 2 | [det] is [vb pp] to | 338 |
|
| 3 | [det] is to be | 191 |
|
| 4 | [det] [vb pp] to be | 90 |
|
