SN4 ""

No	Pattern	Freq
1	it be difficult for [pron]	101
2	it be difficult for [pers pn]	88
3	it is difficult for [pron]	57
4	it was difficult for [pron]	22
5	it 's difficult for [pron]	21
6	it be difficult for me	20
7	it be difficult for i	20
8	it be difficult for we	19
9	it be difficult for us	19
10	it be difficult for them	17
11	it be difficult for they	17
12	it be difficult for him	11
13	it be difficult for [indef pn]	11
14	it be difficult for he	11
15	it be difficult for she	10
16	it be difficult for her	10
17	it be difficult for you	10
18	it be difficult for you	10
19	it be difficult for anyone	9
20	it be difficult for anyone	9