SN4 ""

No	Pattern	Freq
1	[prep] twenty [adj] year	82
2	[prep] twenty [adj] year	82
3	[art] twenty [adj] year	49
4	[art] twenty [adj] year	49
5	for twenty [adj] year	43
6	for twenty [adj] year	43
7	[adj] twenty [adj] year	39
8	[adv] twenty [adj] year	39
9	[adv] twenty [adj] year	37
10	the twenty [adj] year	25
11	the twenty [adj] year	25
12	a twenty [adj] year	23
13	a twenty [adj] year	23
14	[num ord] twenty [adj] year	23
15	[be] twenty [adj] year	23
16	be twenty [adj] year	23
17	[verb] twenty [adj] year	22
18	[noun] twenty [adj] year	20
19	[conj] twenty [adj] year	19
20	[noun sg] twenty [adj] year	16
21	last twenty [adj] year	16
22	last twenty [adj] year	16
23	[pron] twenty [adj] year	15
24	[is] twenty [adj] year	13
25	about twenty [adj] year	12
26	about twenty [adj] year	12
27	[coord] twenty [adj] year	11
28	's twenty [adj] year	10
29	[pos pn] twenty [adj] year	10
30	after twenty [adj] year	9