SN4 ""

No	Pattern	Freq
1	[pron] is [adv] hard [to-vb]	174
2	[pers pn] is [adv] hard [to-vb]	165
3	it is [adv] hard [to-vb]	162
4	it is [adv] hard [to-vb]	162
5	[noun] is [adv] hard [to-vb]	74
6	[noun sg] is [adv] hard [to-vb]	55
7	[noun pl] is [adv] hard [to-vb]	14
8	[adj] is [adv] hard [to-vb]	11
9	[det] is [adv] hard [to-vb]	10
10	which is [adv] hard [to-vb]	9
11	[Wh det] is [adv] hard [to-vb]	9
12	which is [adv] hard [to-vb]	9
13	this is [adv] hard [to-vb]	7
14	this is [adv] hard [to-vb]	7
15	is [adv] [adv] hard [to-vb]	26
16	is [adv] [adv] hard [to-vb]	16
17	is not [adv] hard [to-vb]	10
18	is [not/n't] [adv] hard [to-vb]	10
19	is not [adv] hard [to-vb]	10
20	is [adv] [adv] hard [to-vb]	26
21	is [adv] [adv] hard [to-vb]	23
22	is [adv] much hard [to-vb]	8
23	is [adv] much hard [to-vb]	8
24	is [adv] too hard [to-vb]	6
25	is [adv] too hard [to-vb]	6
26	is [adv] hard [to-vb] [adv]	53
27	is [adv] hard [to-vb] [prep]	40
28	is [adv] hard [to-vb] [prep]	40
29	is [adv] hard [to-vb] [art]	33
30	is [adv] hard [to-vb] [art]	33