SN4 ""

No	Pattern	Freq
1	[conj] [pron] is difficult for	44
2	that [pron] is difficult for	16
3	that [pron] is difficult for	16
4	[that] [pron] is difficult for	16
5	[coord] [pron] is difficult for	15
6	[subord] [pron] is difficult for	13
7	and [pron] is difficult for	11
8	and [pron] is difficult for	11
9	[noun] [pron] is difficult for	10
10	[noun sg] [pron] is difficult for	9
11	[pron] is [adv] difficult for	83
12	[pron] is [adv] difficult for	80
13	[pron] is very difficult for	23
14	[pron] is very difficult for	23
15	[pron] is more difficult for	10
16	[pron] is more difficult for	10
17	[pron] is extremely difficult for	9
18	[pron] is extremely difficult for	9
19	[pron] is always difficult for	5
20	[pron] is always difficult for	5
21	[pron] is difficult [to-vb] for	13
22	[pron] is difficult [verb] for	13
23	[pron] is difficult account for	6
24	[pron] is difficult to account for	6
25	[pron] is difficult for [pron]	58
26	[pron] is difficult for [pers pn]	50
27	[pron] is difficult for [art]	32
28	[pron] is difficult for [art]	32
29	[pron] is difficult for [noun]	31
30	[pron] is difficult for [adj]	22