| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] to believe that [det] | 18 |
|
| 2 | is difficult [verb] that [det] | 14 |
|
| 3 | is difficult [to-vb] that [det] | 14 |
|
| 4 | [be] difficult to believe that [det] | 11 |
|
| 5 | be difficult to believe that [det] | 11 |
|
| 6 | is difficult to believe that [adj] | 8 |
|
| 7 | [is] difficult to believe that [det] | 6 |
|
| 8 | is difficult believe that [det] | 6 |
|
| 9 | is difficult to believe [conj] [det] | 6 |
|
