| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to [be] | 91056 |
|
| 2 | [vb past] to [be] | 18133 |
|
| 3 | have to [be] | 18021 |
|
| 4 | had to [be] | 5409 |
|
| 5 | had to [be] | 5406 |
|
| 6 | had [prep] [be] | 5406 |
|
| 7 | had [prep] [be] | 5406 |
|
