SN4 ""

No	Pattern	Freq
1	[art] [noun sg] about twenty	11
2	[art] [noun sg] about twenty	11
3	[adj] [noun sg] about twenty	9
4	the [noun sg] about twenty	9
5	the [noun sg] about twenty	9
6	[prep] [noun sg] about twenty	6
7	[prep] [noun sg] about twenty	6
8	[noun] [noun sg] about twenty	5
9	[noun sg] [prep] about twenty	38
10	[noun sg] [prep] about twenty	38
11	[noun sg] of about twenty	20
12	[noun sg] of about twenty	20
13	[noun sg] [be] about twenty	8
14	[noun sg] be about twenty	8
15	[noun sg] [verb] about twenty	8
16	[noun sg] for about twenty	7
17	[noun sg] with about twenty	7
18	[noun sg] with about twenty	7
19	[noun sg] for about twenty	7
20	[noun sg] [vb past] about twenty	5
21	[noun sg] [conj] about twenty	5
22	[noun sg] about twenty [noun]	29
23	[noun sg] about twenty [noun pl]	27
24	[noun sg] about twenty year	5
25	[noun sg] about twenty years	5
26	[noun sg] about twenty mile	5
27	[noun sg] about twenty miles	5