| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] difficulty [prep] [verb] what | 10 |
|
| 2 | [art] difficulty [prep] [verb] what | 9 |
|
| 3 | [art] difficulty [prep] [verb] what | 9 |
|
| 4 | the difficulty [prep] [verb] what | 8 |
|
| 5 | the difficulty [prep] [verb] what | 8 |
|
| 6 | [adj] difficulty [prep] [verb] what | 6 |
|
| 7 | difficulty [prep] [verb] [adv] what | 11 |
|
| 8 | difficulty [prep] [verb] [adv] what | 11 |
|
| 9 | difficulty [prep] [verb] exactly what | 5 |
|
| 10 | difficulty [prep] [verb] exactly what | 5 |
|
| 11 | difficulty [prep] [verb] what [be] | 10 |
|
| 12 | difficulty [prep] [verb] what be | 10 |
|
| 13 | difficulty [prep] [verb] what [is] | 8 |
|
| 14 | difficulty [prep] [verb] what is | 7 |
|
| 15 | difficulty [prep] [verb] what [verb] | 5 |
|
