| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] to be [adj] | 62 |
|
| 2 | it used to be [adj] | 53 |
|
| 3 | it ought to be [adj] | 41 |
|
| 4 | it [vb mod] to be [num] | 19 |
|
| 5 | it [vb mod] to be possible | 19 |
|
| 6 | it [vb mod] to be possible | 19 |
|
| 7 | it [vb mod] to be [det] | 9 |
|
| 8 | it [vb mod] to be all | 5 |
|
| 9 | it [vb mod] to be all | 5 |
|
