SN4 ""

No	Pattern	Freq
1	[prep] [adv] a third	144
2	[prep] [adv] a third	144
3	[verb] [adv] a third	127
4	[conj] [adv] a third	91
5	[adv] [adv] a third	78
6	[coord] [adv] a third	64
7	be [adv] a third	55
8	[be] [adv] a third	55
9	[adv] [adv] a third	53
10	and [adv] a third	47
11	and [adv] a third	47
12	[is] [adv] a third	37
13	[vb past] [adv] a third	36
14	by [adv] a third	33
15	for [adv] a third	33
16	by [adv] a third	33
17	for [adv] a third	33
18	[noun] [adv] a third	30
19	at [adv] a third	30
20	is [adv] a third	30
21	at [adv] a third	30
22	[vb -s] [adv] a third	22
23	[adv prt] [adv] a third	21
24	that [adv] a third	19
25	[that] [adv] a third	19
26	that [adv] a third	19
27	[v-ing] [adv] a third	19
28	[vb base] [adv] a third	19
29	[noun sg] [adv] a third	18
30	only [adv] a third	17