| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] made [adv] difficult [prep] the | 7 |
|
| 2 | [was/were] make [adv] difficult [prep] the | 7 |
|
| 3 | [was/were] make [adv] difficult [prep] the | 7 |
|
| 4 | [was/were] make [adv] difficult by the | 7 |
|
| 5 | [was/were] make more difficult [prep] the | 6 |
|
| 6 | was make [adv] difficult [prep] the | 6 |
|
| 7 | [was/were] make more difficult [prep] the | 6 |
|
