SN4 ""

No	Pattern	Freq
1	[art] last three years	227
2	[art] last three years	227
3	the last three years	227
4	the last three years	227
5	last three [adj] years	7
6	last three [num] years	5
7	last three years [verb]	23
8	last three years [prep]	21
9	last three years [prep]	21
10	last three years [pron]	20
11	last three years [pers pn]	16
12	last three years [conj]	13
13	last three years have	11
14	last three years [coord]	11
15	last three years and	10
16	last three years and	10
17	last three years of	8
18	last three years of	8
19	last three years [noun]	8
20	last three years [vb base]	7
21	last three years have	7
22	last three years the	6
23	last three years the	6
24	last three years [art]	6
25	last three years [art]	6
26	last three years i	5
27	last three years i	5
28	last three years [noun prp]	5
29	last three years we	5
30	last three years we	5