| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] to be | 3714 |
|
| 2 | [pron] had to be | 1788 |
|
| 3 | it have to be | 1424 |
|
| 4 | [pers pn] had to be | 1256 |
|
| 5 | it [vb past] to be | 1130 |
|
| 6 | it had [prep] be | 492 |
|
| 7 | it had [prep] be | 492 |
|
| 8 | it had to be | 490 |
|
| 9 | it had to [be] | 490 |
|
| 10 | it had to be | 490 |
|
