| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficulty [prep] [v-ing] the [adj] [noun] | 89 |
|
| 2 | difficulty in [verb] the [adj] [noun] | 62 |
|
| 3 | difficulty [prep] [verb] the [adj] [noun] | 60 |
|
| 4 | difficulty [prep] [verb] the [adj] [noun sg] | 57 |
|
| 5 | difficulties [prep] [verb] the [adj] [noun] | 29 |
|
| 6 | difficulty [prep] [verb] the [adj] [noun pl] | 28 |
|
| 7 | difficulty of [verb] the [adj] [noun] | 26 |
|
| 8 | difficulty [prep] finding the [adj] [noun] | 10 |
|
| 9 | difficulty [prep] find the [adj] [noun] | 10 |
|
| 10 | difficulty [prep] [verb] the necessary [noun] | 5 |
|
