| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be very difficult for [pron] [to-vb] | 24 |
|
| 2 | be very difficult for [pers pn] [to-vb] | 24 |
|
| 3 | be very difficult for [pron] [to-vb] | 24 |
|
| 4 | be very difficult for [pron] [to-vb] | 9 |
|
| 5 | is very difficult for [pron] [to-vb] | 8 |
|
| 6 | be very difficult for us [to-vb] | 7 |
|
| 7 | be very difficult for we [to-vb] | 7 |
|
| 8 | be very difficult for me [to-vb] | 6 |
|
| 9 | be very difficult for i [to-vb] | 6 |
|
| 10 | 's very difficult for [pron] [to-vb] | 5 |
|
| 11 | be very difficult for them [to-vb] | 5 |
|
| 12 | be very difficult for they [to-vb] | 5 |
|
