| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pers pn] is not [adj] [verb] | 64 |
|
| 2 | but [pers pn] is [adv] difficult [verb] | 32 |
|
| 3 | [conj] [pers pn] is not difficult [verb] | 20 |
|
| 4 | but [pers pn] be not difficult [verb] | 11 |
|
| 5 | but [pers pn] [be] not difficult [verb] | 11 |
|
| 6 | but [pers pn] [is] not difficult [verb] | 6 |
|
| 7 | but [pers pn] is [not/n't] difficult [verb] | 5 |
|
| 8 | but [pers pn] is not difficult [verb] | 5 |
|
| 9 | but [pron] is not difficult [verb] | 5 |
|
