| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not been a easy | 16 |
|
| 2 | have not [been] an easy | 16 |
|
| 3 | has not [been] a easy | 11 |
|
| 4 | have not [been] a easy | 11 |
|
| 5 | have n't [been] a easy | 5 |
|
