| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [pron] is [adj] [prep] | 775 |
|
| 2 | [conj] [pron] is difficult [prep] | 67 |
|
| 3 | that [pron] be difficult [prep] | 32 |
|
| 4 | that [pron] [be] difficult [prep] | 32 |
|
| 5 | that [pron] [is] difficult [prep] | 24 |
|
