| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] for [det] [noun sg] | 1344 |
|
| 2 | [adv] difficult for [det] | 56 |
|
| 3 | [adv] difficult for [noun sg] | 30 |
|
| 4 | difficult for [det] [noun sg] | 20 |
|
| 5 | [adv] difficult [det] [noun sg] | 10 |
|
