SN4 ""

No	Pattern	Freq
1	[noun] is [adv] [vb base]	170
2	[noun sg] is [adv] [vb base]	138
3	[pron] is [adv] [vb base]	100
4	[verb] is [adv] [vb base]	79
5	[pers pn] is [adv] [vb base]	67
6	do is [adv] [vb base]	65
7	it is [adv] [vb base]	54
8	it is [adv] [vb base]	54
9	[to-vb] is [adv] [vb base]	31
10	to do is [adv] [vb base]	29
11	[adj] is [adv] [vb base]	27
12	[det] is [adv] [vb base]	25
13	[vb infin] is [adv] [vb base]	23
14	do is [adv] [vb base]	21
15	[Wh det] is [adv] [vb base]	21
16	[noun prp] is [adv] [vb base]	18
17	this is [adv] [vb base]	16
18	this is [adv] [vb base]	16
19	[conj] is [adv] [vb base]	15
20	which is [adv] [vb base]	14
21	which is [adv] [vb base]	14
22	[vb base] is [adv] [vb base]	13
23	[noun pl] is [adv] [vb base]	12
24	[coord] is [adv] [vb base]	11
25	[adv] is [adv] [vb base]	11
26	[adv] is [adv] [vb base]	11
27	do is [adv] [vb base]	9
28	and is [adv] [vb base]	8
29	he is [adv] [vb base]	8
30	[vb pp] is [adv] [vb base]	8