SN4 ""

No	Pattern	Freq
1	be much more difficult [to-vb]	57
2	[be] much more difficult [to-vb]	57
3	[is] much more difficult [to-vb]	31
4	is much more difficult [to-vb]	30
5	[am/are] much more difficult [to-vb]	17
6	[pron] much more difficult [to-vb]	17
7	[pers pn] much more difficult [to-vb]	17
8	it much more difficult [to-vb]	16
9	are much more difficult [to-vb]	16
10	it much more difficult [to-vb]	16
11	[adv] much more difficult [to-vb]	15
12	[adv] much more difficult [to-vb]	15
13	[conj] much more difficult [to-vb]	6
14	[coord] much more difficult [to-vb]	6
15	[verb] much more difficult [to-vb]	5
16	[be] much more difficult [to-vb]	5
17	be much more difficult [to-vb]	5
18	much more difficult [to-vb] [conj]	20
19	much more difficult [to-vb] [art]	16
20	much more difficult [to-vb] [prep]	16
21	much more difficult [to-vb] [art]	16
22	much more difficult [to-vb] [prep]	16
23	much more difficult [to-vb] the	14
24	much more difficult [to-vb] the	14
25	much more difficult [to-vb] [subord]	11
26	much more difficult [to-vb] than	9
27	much more difficult [to-vb] than	9
28	much more difficult [to-vb] [noun]	8
29	much more difficult [to-vb] [coord]	7
30	much more difficult [to-vb] [adj]	7