| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult it be [prep] [pers pn] | 10 |
|
| 2 | [adv] difficult it be for [pers pn] | 10 |
|
| 3 | [adv] difficult it be for [pers pn] | 10 |
|
| 4 | how difficult it be [prep] [pers pn] | 7 |
|
| 5 | [Wh adv] difficult it be [prep] [pers pn] | 7 |
|
| 6 | how difficult it be [prep] [pers pn] | 7 |
|
| 7 | [adv] difficult it was [prep] [pers pn] | 6 |
|
