SN4 ""

No	Pattern	Freq
1	be [adv] [verb] is that	53
2	[be] [adv] [verb] is that	53
3	[noun] [adv] [verb] is that	44
4	[pron] [adv] [verb] is that	36
5	[noun sg] [adv] [verb] is that	32
6	[modal v] [adv] [verb] is that	27
7	[vb mod] [adv] [verb] is that	27
8	[is] [adv] [verb] is that	26
9	[pers pn] [adv] [verb] is that	23
10	is [adv] [verb] is that	23
11	[am/are] [adv] [verb] is that	22
12	[adv] [adv] [verb] is that	17
13	[adv] [adv] [verb] is that	15
14	[Wh det] [adv] [verb] is that	13
15	[verb] [adv] [verb] is that	12
16	what [adv] [verb] is that	12
17	have [adv] [verb] is that	12
18	what [adv] [verb] is that	12
19	[vb base] [adv] [verb] is that	10
20	're [adv] [verb] is that	10
21	will [adv] [verb] is that	9
22	can [adv] [verb] is that	9
23	can [adv] [verb] is that	9
24	[noun pl] [adv] [verb] is that	9
25	will [adv] [verb] is that	8
26	so [adv] [verb] is that	7
27	so [adv] [verb] is that	7
28	we [adv] [verb] is that	7
29	have [adv] [verb] is that	7
30	[adj] [adv] [verb] is that	7