| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] for a | 188 |
|
| 2 | it is [adj] for a | 188 |
|
| 3 | it is [adj] for a | 177 |
|
| 4 | it is possible for a | 51 |
|
| 5 | it is possible for a | 51 |
|
| 6 | it is unusual for a | 17 |
|
| 7 | it is unusual for a | 17 |
|
| 8 | it is easy for a | 15 |
|
| 9 | it is [adj -er] for a | 11 |
|
| 10 | it is rare for a | 11 |
|
| 11 | it is rare for a | 11 |
|
| 12 | it is difficult for a | 9 |
|
| 13 | it is easy for a | 9 |
|
| 14 | it is difficult for a | 9 |
|
| 15 | it is important for a | 7 |
|
| 16 | it is important for a | 7 |
|
| 17 | it is usual for a | 7 |
|
| 18 | it is usual for a | 7 |
|
| 19 | it is easier for a | 6 |
|
| 20 | it is essential for a | 6 |
|
| 21 | it is essential for a | 6 |
|
| 22 | it is impossible for a | 5 |
|
| 23 | it is good for a | 5 |
|
| 24 | it is impossible for a | 5 |
|
