| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] and [pron] be difficult for | 6 |
|
| 2 | and [pron] be [adv] difficult for | 12 |
|
| 3 | and [pron] be [adv] difficult for | 12 |
|
| 4 | and [pron] be very difficult for | 6 |
|
| 5 | and [pron] be very difficult for | 6 |
|
| 6 | and [pron] be difficult for [art] | 5 |
|
| 7 | and [pron] be difficult for [art] | 5 |
|
