No | Pattern | Freq | Relations |
---|---|---|---|
1 | [Wh adv] difficult it is for [noun] | 8 | |
2 | [Wh adv] difficult it is for [noun pl] | 6 | |
3 | [verb] [Wh adv] difficult it is for | 13 | |
4 | [vb base] [Wh adv] difficult it is for | 7 | |
5 | know [Wh adv] difficult it is for | 5 | |
6 | know [Wh adv] difficult it is for | 5 |