| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [adv] have difficulty | 15 |
|
| 2 | [noun pl] [adv] have difficulty | 12 |
|
| 3 | [noun pl] [adv] have difficulty | 10 |
|
| 4 | [noun pl] often have difficulty | 6 |
|
| 5 | [noun pl] often have difficulty | 6 |
|
| 6 | [noun pl] [adv] have difficulties | 5 |
|
