SN4 ""

No	Pattern	Freq
1	[verb] [adv] [adv] is	326
2	[noun] [adv] [adv] is	260
3	[conj] [adv] [adv] is	221
4	[noun sg] [adv] [adv] is	207
5	[adv] [adv] [adv] is	150
6	[coord] [adv] [adv] is	145
7	[pron] [adv] [adv] is	112
8	and [adv] [adv] is	94
9	and [adv] [adv] is	94
10	[adv] [adv] [adv] is	93
11	[vb pp] [adv] [adv] is	85
12	[v-ing] [adv] [adv] is	78
13	[pers pn] [adv] [adv] is	74
14	[be] [adv] [adv] is	60
15	be [adv] [adv] is	60
16	[vb base] [adv] [adv] is	58
17	[adj] [adv] [adv] is	53
18	[is] [adv] [adv] is	46
19	it [adv] [adv] is	45
20	it [adv] [adv] is	45
21	but [adv] [adv] is	45
22	but [adv] [adv] is	45
23	[that] [adv] [adv] is	39
24	that [adv] [adv] is	39
25	that [adv] [adv] is	39
26	[subord] [adv] [adv] is	37
27	[noun pl] [adv] [adv] is	35
28	[to-vb] [adv] [adv] is	33
29	[prep] [adv] [adv] is	29
30	[prep] [adv] [adv] is	29