| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't be [adv] difficult | 31 |
|
| 2 | n't [be] [adv] difficult | 31 |
|
| 3 | n't [be] [adv] difficult | 27 |
|
| 4 | n't be [adv] difficult | 27 |
|
| 5 | n't [be] too difficult | 19 |
|
| 6 | n't [be] too difficult | 19 |
|
| 7 | n't [be] that difficult | 5 |
|
| 8 | n't [be] that difficult | 5 |
|
