SN4 ""

No	Pattern	Freq
1	[conj] it is [adv] that	71
2	[coord] it is [adv] that	50
3	and it is [adv] that	45
4	and it is [adv] that	45
5	[subord] it is [adv] that	15
6	[noun] it is [adv] that	12
7	[adv] it is [adv] that	10
8	[adv] it is [adv] that	10
9	[verb] it is [adv] that	9
10	[vb base] it is [adv] that	7
11	[that] it is [adv] that	6
12	that it is [adv] that	6
13	that it is [adv] that	6
14	if it is [adv] that	5
15	for it is [adv] that	5
16	but it is [adv] that	5
17	for it is [adv] that	5
18	[noun sg] it is [adv] that	5
19	[noun pl] it is [adv] that	5
20	but it is [adv] that	5
21	if it is [adv] that	5
22	it is [adv] [adv] that	152
23	it is [not/n't] [adv] that	88
24	it is not [adv] that	88
25	it is [adj] [adv] that	84
26	it is [adj] [adv] that	83
27	it is not [adv] that	79
28	it is [adv] [adv] that	64
29	it is [verb] [adv] that	48
30	it is [vb pp] [adv] that	46