| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] easy | 1614 |
|
| 2 | it be [adv] easy | 1091 |
|
| 3 | it be usually [adj] | 182 |
|
| 4 | it be usually easy | 15 |
|
| 5 | it [be] usually easy | 15 |
|
| 6 | [pers pn] be usually easy | 15 |
|
| 7 | [pron] be usually easy | 15 |
|
| 8 | it be usually easy | 15 |
|
