| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] that | 14023 |
|
| 2 | [adv] difficult [conj] | 757 |
|
| 3 | [adv] difficult that | 18 |
|
| 4 | [adv] difficult [that] | 17 |
|
| 5 | [adv] difficult that | 17 |
|
