SN4 ""

No	Pattern	Freq
1	[prep] [pos pn] three years	17
2	[prep] [pos pn] three years	17
3	in [pos pn] three years	6
4	in [pos pn] three years	6
5	during [pos pn] three years	5
6	during [pos pn] three years	5
7	[verb] [pos pn] three years	5
8	[pos pn] [noun] three years	16
9	[pos pn] [noun sg] three years	15
10	[pos pn] [adj] three years	15
11	[pos pn] [num ord] three years	15
12	[pos pn] first three years	13
13	[pos pn] first three years	13
14	[pos pn] three years [prep]	19
15	[pos pn] three years [prep]	19
16	[pos pn] three years at	5
17	[pos pn] three years in	5
18	[pos pn] three years in	5
19	[pos pn] three years at	5