| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] an [noun] | 2231 |
|
| 2 | [be] an important [noun] | 1659 |
|
| 3 | it [be] an important | 183 |
|
| 4 | it an important [noun] | 13 |
|
| 5 | it [be] important [noun] | 9 |
|
