| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficulty in [verb] the [adj] | 85 |
|
| 2 | difficulty in [verb] the [adj] | 85 |
|
| 3 | difficulty in [v-ing] the [adj] | 85 |
|
| 4 | difficulty in [verb] the [adj] | 69 |
|
| 5 | difficulty in [verb] the [adj] | 61 |
|
| 6 | difficulties in [verb] the [adj] | 24 |
|
| 7 | difficulty in finding the [adj] | 11 |
|
| 8 | difficulty in find the [adj] | 11 |
|
| 9 | difficulty in [verb] the [num] | 6 |
|
| 10 | difficulty in make the [adj] | 5 |
|
| 11 | difficulty in making the [adj] | 5 |
|
| 12 | difficulty in [verb] the necessary | 5 |
|
| 13 | difficulty in [verb] the necessary | 5 |
|
