| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] it difficult [to-vb] [adj] [noun sg] | 8 |
|
| 2 | [vb infin] it difficult [verb] [adj] [noun sg] | 8 |
|
| 3 | [vb infin] it difficult [verb] [adj] [noun sg] | 8 |
|
| 4 | find it difficult [verb] [adj] [noun sg] | 6 |
|
