| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have a [adv] difficult [noun sg] | 30 |
|
| 2 | have been a difficult [noun sg] | 24 |
|
| 3 | been a [adv] difficult [noun sg] | 14 |
|
| 4 | have been a [adv] difficult | 10 |
|
