SN4 ""

No	Pattern	Freq
1	[conj] it is [adv] [adv]	1850
2	[coord] it is [adv] [adv]	856
3	but it is [adv] [adv]	550
4	but it is [adv] [adv]	550
5	[subord] it is [adv] [adv]	541
6	[that] it is [adv] [adv]	453
7	that it is [adv] [adv]	453
8	that it is [adv] [adv]	453
9	[noun] it is [adv] [adv]	321
10	and it is [adv] [adv]	304
11	and it is [adv] [adv]	304
12	[adv] it is [adv] [adv]	275
13	[adv] it is [adv] [adv]	231
14	[noun sg] it is [adv] [adv]	223
15	[verb] it is [adv] [adv]	169
16	if it is [adv] [adv]	98
17	if it is [adv] [adv]	98
18	because it is [adv] [adv]	94
19	because it is [adv] [adv]	94
20	although it is [adv] [adv]	83
21	although it is [adv] [adv]	83
22	[vb base] it is [adv] [adv]	77
23	[noun pl] it is [adv] [adv]	74
24	[adj] it is [adv] [adv]	67
25	as it is [adv] [adv]	62
26	as it is [adv] [adv]	62
27	though it is [adv] [adv]	58
28	though it is [adv] [adv]	58
29	[prep] it is [adv] [adv]	52
30	[prep] it is [adv] [adv]	52