| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be very difficult [verb] [coord] | 14 |
|
| 2 | [be] very difficult [verb] [coord] | 14 |
|
| 3 | [is] very difficult [verb] [coord] | 5 |
|
| 4 | [adv] very difficult [verb] [coord] | 5 |
|
| 5 | very difficult [noun] [verb] [coord] | 5 |
|
| 6 | very difficult [noun sg] [verb] [coord] | 5 |
|
| 7 | very difficult [verb] [noun] [coord] | 5 |
|
| 8 | very difficult [verb] [coord] [verb] | 11 |
|
| 9 | very difficult [verb] [coord] [vb infin] | 10 |
|
