| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] an [noun] | 2231 |
|
| 2 | [be] an easy [noun] | 274 |
|
| 3 | it [be] an easy | 79 |
|
| 4 | it [be] easy [noun] | 20 |
|
| 5 | it an easy [noun] | 9 |
|
