SN4 ""

No	Pattern	Freq
1	[pron] difficult [to-vb]	1150
2	[pers pn] difficult [verb]	1145
3	it difficult [verb]	1120
4	it difficult [verb]	1120
5	[pron] difficult get	55
6	[pron] difficult to get	53
7	[pron] difficult understand	35
8	[pron] difficult believe	35
9	[pron] difficult to believe	35
10	[pron] difficult to understand	35
11	[pron] difficult see	26
12	[pron] difficult to see	26
13	[pron] difficult accept	24
14	[pron] difficult to accept	24
15	[pron] difficult cope	22
16	[pron] difficult to cope	22
17	[pron] difficult make	20
18	[pron] difficult to make	20
19	they difficult [verb]	20
20	them difficult [verb]	19
21	[pron] difficult keep	17
22	[pron] difficult to keep	17
23	[pron] difficult to maintain	17
24	[pron] difficult maintain	17
25	[pron] difficult to identify	15
26	[pron] difficult identify	15
27	[pron] difficult to concentrate	14
28	[pron] difficult to know	14
29	[pron] difficult know	14
30	[pron] difficult concentrate	14