| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] be difficult for us | 5 |
|
| 2 | [pron] would be difficult for us | 5 |
|
| 3 | [pron] [modal v] be difficult for us | 5 |
|
| 4 | [pron] would be difficult for us | 5 |
|
| 5 | [pron] be [adv] difficult for us | 10 |
|
| 6 | [pron] be [adv] difficult for us | 9 |
|
| 7 | [pron] be very difficult for us | 7 |
|
| 8 | [pron] be very difficult for us | 7 |
|
| 9 | [pron] be difficult for us [to-vb] | 15 |
|
| 10 | [pron] be difficult for us [verb] | 15 |
|
