| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it [be] [prep] us [to-vb] | 5 |
|
| 2 | it [be] [adj] [prep] us [to-vb] | 121 |
|
| 3 | it [be] [adj] [prep] us [to-vb] | 114 |
|
| 4 | it [be] [adv] [prep] us [to-vb] | 48 |
|
| 5 | it [be] up [prep] us [to-vb] | 28 |
|
| 6 | it [be] [adv prt] [prep] us [to-vb] | 28 |
|
| 7 | it [be] up [prep] us [to-vb] | 28 |
|
| 8 | it [be] important [prep] us [to-vb] | 21 |
|
| 9 | it [be] important [prep] us [to-vb] | 21 |
|
| 10 | it [be] not [prep] us [to-vb] | 17 |
|
| 11 | it [be] not [prep] us [to-vb] | 17 |
|
| 12 | it [be] [not/n't] [prep] us [to-vb] | 17 |
|
| 13 | it [be] difficult [prep] us [to-vb] | 15 |
|
| 14 | it [be] difficult [prep] us [to-vb] | 15 |
|
| 15 | it [be] necessary [prep] us [to-vb] | 11 |
|
| 16 | it [be] necessary [prep] us [to-vb] | 11 |
|
| 17 | it [be] impossible [prep] us [to-vb] | 9 |
|
| 18 | it [be] impossible [prep] us [to-vb] | 9 |
|
| 19 | it [be] hard [prep] us [to-vb] | 8 |
|
| 20 | it [be] hard [prep] us [to-vb] | 8 |
|
| 21 | it [be] possible [prep] us [to-vb] | 7 |
|
| 22 | it [be] possible [prep] us [to-vb] | 7 |
|
| 23 | it [be] [noun sg] [prep] us [to-vb] | 7 |
|
| 24 | it [be] easy [prep] us [to-vb] | 7 |
|
| 25 | it [be] [noun] [prep] us [to-vb] | 7 |
|
| 26 | it [be] time [prep] us [to-vb] | 6 |
|
| 27 | it [be] [adj -er] [prep] us [to-vb] | 6 |
|
| 28 | it [be] time [prep] us [to-vb] | 6 |
|
| 29 | it [be] easy [prep] us [to-vb] | 5 |
|
