SN4 ""

No	Pattern	Freq
1	be for [adj] years	140
2	[be] for [adj] years	140
3	[be] for [det] years	73
4	[be] for [num] years	67
5	[was/were] for [adj] years	58
6	[be] for many years	55
7	[be] for many years	55
8	been for [adj] years	53
9	[been] for [adj] years	53
10	was for [adj] years	50
11	is for [adj] years	16
12	[is] for [adj] years	16
13	[be] for two years	14
14	[be] for two years	14
15	[be] for some years	13
16	[be] for some years	13
17	[be] for [adj] years	12
18	be for [adj] years	12
19	[be] for three years	10
20	[be] for three years	10
21	were for [adj] years	8
22	[be] for five years	6
23	[be] for five years	6