| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to [be] | 91837 |
|
| 2 | [vb pp] to [be] | 20332 |
|
| 3 | have to [be] | 18027 |
|
| 4 | had [prep] [be] | 334 |
|
