| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] be [adj] [to-vb] | 199 |
|
| 2 | it [vb -s] been [adj] [to-vb] | 191 |
|
| 3 | it has be [adj] [to-vb] | 159 |
|
| 4 | it [vb -s] be possible [to-vb] | 51 |
|
| 5 | it 's be [adj] [to-vb] | 32 |
|
| 6 | it [vb -s] be difficult [to-vb] | 27 |
|
| 7 | it [vb -s] be able [to-vb] | 23 |
|
| 8 | it [vb -s] be necessary [to-vb] | 22 |
|
| 9 | it [vb -s] be impossible [to-vb] | 12 |
|
| 10 | it [vb -s] be unable [to-vb] | 7 |
|
| 11 | it [vb -s] be hard [to-vb] | 6 |
|
| 12 | it [vb -s] be [adj] to establish | 6 |
|
| 13 | it [vb -s] be [adj] to see | 6 |
|
| 14 | it [vb -s] be good [to-vb] | 6 |
|
| 15 | it [vb -s] be [adj] to get | 5 |
|
| 16 | it [vb -s] be [adj] to find | 5 |
|
| 17 | it [vb -s] be [adj] to achieve | 5 |
|
