| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] easy to see | 42 |
|
| 2 | it is [adv] easy to see | 38 |
|
| 3 | it [is] [adv] easy to see | 24 |
|
| 4 | it [is] not easy to see | 18 |
|
| 5 | it [is] not easy to see | 18 |
|
| 6 | it [is] [not/n't] easy to see | 18 |
|
