| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [verb] be [prep] | 15 |
|
| 2 | it [vb -s] [verb] [be] [prep] | 13 |
|
| 3 | it [verb] [to-vb] [be] [prep] | 12 |
|
| 4 | it [verb] [verb] [been] [prep] | 11 |
|
| 5 | it [verb] [verb] been [prep] | 11 |
|
| 6 | it [verb] have [be] [prep] | 11 |
|
| 7 | it [verb] to have [be] [prep] | 11 |
|
| 8 | it seem [verb] [be] [prep] | 8 |
|
| 9 | it seems [verb] [be] [prep] | 8 |
|
| 10 | it [verb] [verb] [be] in | 6 |
|
