No | Pattern | Freq | Relations |
---|---|---|---|
1 | know how difficult it is for | 5 | |
2 | know [adv] difficult it is for | 5 | |
3 | know [adv] difficult it is for | 5 | |
4 | know [Wh adv] difficult it is for | 5 | |
5 | know how difficult it is for | 5 | |
6 | know [adv] difficult it is for | 5 |