SN4 ""

No	Pattern	Freq
1	[noun pl] [prep] three years	88
2	[noun pl] [prep] three years	88
3	[noun pl] for three years	39
4	[noun pl] for three years	39
5	[noun pl] in three years	15
6	[noun pl] in three years	15
7	[noun pl] of three years	10
8	[noun pl] of three years	10
9	[noun pl] after three years	7
10	[noun pl] to three years	7
11	[noun pl] within three years	7
12	[noun pl] within three years	7
13	[noun pl] to three years	7
14	[noun pl] after three years	7
15	months [prep] three years	6