SN4 ""

No	Pattern	Freq
1	[noun] [prep] less than	601
2	[noun sg] [prep] less than	382
3	[verb] [prep] less than	233
4	[noun pl] [prep] less than	195
5	[vb pp] [prep] less than	143
6	[adj] [prep] less than	64
7	[adv] [prep] less than	52
8	[vb past] [prep] less than	33
9	[adv] [prep] less than	25
10	[adv prt] [prep] less than	25
11	[num] [prep] less than	24
12	[adj] [prep] less than	22
13	[be] [prep] less than	20
14	be [prep] less than	20
15	[det] [prep] less than	17
16	[v-ing] [prep] less than	17
17	account [prep] less than	16
18	population [prep] less than	15
19	compare [prep] less than	14
20	[n mass] [prep] less than	14
21	[pron] [prep] less than	14
22	compared [prep] less than	14
23	[vb infin] [prep] less than	13
24	[conj] [prep] less than	13
25	rise [prep] less than	13
26	[unc] [prep] less than	12
27	population [prep] less than	12
28	[no cls] [prep] less than	12
29	[vb base] [prep] less than	11
30	rate [prep] less than	11