| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [prep] be [adj] | 271 |
|
| 2 | it is [adj] to [be] [adj] | 271 |
|
| 3 | it is [adj] [prep] [be] [adj] | 271 |
|
| 4 | it is important [prep] [be] [adj] | 64 |
|
| 5 | it is [adj] [prep] [be] able | 45 |
|
| 6 | it is difficult [prep] [be] [adj] | 33 |
|
| 7 | it is [adj] [prep] [be] aware | 28 |
|
| 8 | it is [adj] [prep] [be] sure | 27 |
|
| 9 | it is likely [prep] [be] [adj] | 20 |
|
| 10 | it is impossible [prep] [be] [adj] | 19 |
|
| 11 | it is easy [prep] [be] [adj] | 18 |
|
| 12 | it is [adj] [prep] [be] certain | 18 |
|
| 13 | it is [adj] [prep] [be] clear | 17 |
|
| 14 | it is necessary [prep] [be] [adj] | 16 |
|
| 15 | it is unlikely [prep] [be] [adj] | 14 |
|
| 16 | it is possible [prep] [be] [adj] | 12 |
|
| 17 | it is hard [prep] [be] [adj] | 10 |
|
| 18 | it is useful [prep] [be] [adj] | 7 |
|
| 19 | it is nice [prep] [be] [adj] | 7 |
|
| 20 | it is good [prep] [be] [adj] | 6 |
|
| 21 | it is [adj] [prep] [be] precise | 6 |
|
| 22 | it is vital [prep] [be] [adj] | 5 |
|
