| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficult [verb] they [adv] | 24 |
|
| 2 | difficult [to-vb] they [adv] | 24 |
|
| 3 | difficult [verb] them [adv] | 23 |
|
| 4 | difficult [verb] they [adv] | 13 |
|
| 5 | difficult [verb] they [adv prt] | 10 |
|
| 6 | difficult [verb] they out | 5 |
|
| 7 | difficult [verb] they out | 5 |
|
