SN4 ""

No	Pattern	Freq
1	[adv prt] for [num] years	122
2	on for [adj] years	48
3	[adv prt] for [det] years	38
4	up for [adj] years	35
5	[adv prt] for two years	24
6	[adv prt] for two years	24
7	[adv prt] for many years	19
8	[adv prt] for many years	19
9	out for [adj] years	19
10	around for [adj] years	17
11	in for [adj] years	15
12	[adv prt] for five years	12
13	[adv prt] for five years	12
14	[adv prt] for three years	10
15	[adv prt] for three years	10
16	[adv prt] for ten years	9
17	[adv prt] for some years	9
18	[adv prt] for several years	9
19	off for [adj] years	9
20	[adv prt] for some years	9
21	[adv prt] for several years	9
22	[adv prt] for ten years	9
23	back for [adj] years	6
24	over for [adj] years	6
25	[adv prt] for fifteen years	6
26	[adv prt] for fifteen years	6
27	down for [adj] years	5
28	[adv prt] for six years	5
29	[adv prt] for four years	5
30	[adv prt] for four years	5