| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to be | 91055 |
|
| 2 | [vb past] to be | 18133 |
|
| 3 | have to be | 18021 |
|
| 4 | had to [be] | 5409 |
|
| 5 | had to be | 5409 |
|
| 6 | had to [be] | 5406 |
|
| 7 | had [prep] be | 5406 |
|
