| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] a easy [noun] | 184 |
|
| 2 | [not/n't] [been] a [noun] | 182 |
|
| 3 | [been] a easy [noun] | 24 |
|
| 4 | [not/n't] [been] a easy | 17 |
|
