| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [adv] [conj] | 1929 |
|
| 2 | [adv] difficult [conj] | 785 |
|
| 3 | 's [adv] difficult | 464 |
|
| 4 | 's difficult [conj] | 22 |
|
