| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] may [adv] have difficulty | 5 |
|
| 2 | may [adv] have difficulty [prep] | 7 |
|
| 3 | may [adv] have difficulty [prep] | 7 |
|
| 4 | may [adv] have difficulty in | 5 |
|
| 5 | may [adv] have difficulty in | 5 |
|
