SN4 ""

No	Pattern	Freq
1	[pron] be difficult for [pers pn] [to-vb]	68
2	it be difficult for [pers pn] [to-vb]	68
3	it be difficult for [pers pn] [to-vb]	68
4	[pers pn] be difficult for [pers pn] [to-vb]	68
5	[modal v] be difficult for [pers pn] [to-vb]	27
6	[vb mod] be difficult for [pers pn] [to-vb]	27
7	would be difficult for [pers pn] [to-vb]	11
8	would be difficult for [pers pn] [to-vb]	11
9	may be difficult for [pers pn] [to-vb]	8
10	may be difficult for [pers pn] [to-vb]	8
11	will be difficult for [pers pn] [to-vb]	6
12	will be difficult for [pers pn] [to-vb]	6
13	be [adv] difficult for [pers pn] [to-vb]	58
14	be [adv] difficult for [pers pn] [to-vb]	55
15	be very difficult for [pers pn] [to-vb]	24
16	be very difficult for [pers pn] [to-vb]	24
17	be more difficult for [pers pn] [to-vb]	7
18	be more difficult for [pers pn] [to-vb]	7
19	be difficult for [pers pn] [to-vb] [pron]	18
20	be difficult for [pers pn] [to-vb] [prep]	16
21	be difficult for [pers pn] [to-vb] [prep]	16
22	be difficult for [pers pn] [to-vb] [art]	14
23	be difficult for [pers pn] [to-vb] [art]	14
24	be difficult for [pers pn] [to-vb] [adj]	13
25	be difficult for [pers pn] [to-vb] [conj]	12
26	be difficult for [pers pn] [to-vb] [adv]	9
27	be difficult for [pers pn] [to-vb] the	7
28	be difficult for [pers pn] [to-vb] a	7
29	be difficult for [pers pn] [to-vb] the	7
30	be difficult for [pers pn] [to-vb] [noun]	7