| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] difficult [verb] [conj] [art] | 24 |
|
| 2 | is [adv] [adj] [verb] [coord] [art] | 10 |
|
| 3 | is [adv] [adj] [verb] [coord] [art] | 9 |
|
| 4 | be [adv] difficult [verb] [coord] [art] | 9 |
|
| 5 | [be] [adv] difficult [verb] [coord] [art] | 9 |
|
| 6 | is [adv] difficult [verb] [coord] [art] | 6 |
|
| 7 | is [adv] difficult [verb] [coord] [art] | 6 |
|
| 8 | [is] [adv] difficult [verb] [coord] [art] | 6 |
|
| 9 | is [adv] difficult [verb] [coord] [art] | 6 |
|
