| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [verb] to [be] | 371 |
|
| 2 | [pron] [vb -s] [vb infin] to [be] | 129 |
|
| 3 | it [verb] [vb infin] to [be] | 50 |
|
| 4 | it [vb -s] [vb infin] [prep] [be] | 48 |
|
