SN4 ""

No	Pattern	Freq
1	[noun] [prep] previous years	71
2	[conj] [prep] previous years	61
3	[subord] [prep] previous years	57
4	[verb] [prep] previous years	47
5	as [prep] previous years	40
6	[noun pl] [prep] previous years	40
7	as [prep] previous years	40
8	[vb pp] [prep] previous years	33
9	[noun sg] [prep] previous years	30
10	[adv] [prep] previous years	19
11	than [prep] previous years	16
12	than [prep] previous years	16
13	[adv prt] [prep] previous years	14
14	[adj] [prep] previous years	11
15	down [prep] previous years	7
16	down [prep] previous years	7
17	[det] [prep] previous years	6
18	[pron] [prep] previous years	6
19	compared [prep] previous years	5
20	compare [prep] previous years	5
21	[vb past] [prep] previous years	5
22	[adv] [prep] previous years	5
23	[adj] [prep] previous years	5
24	[prep] the previous years	18
25	[prep] [art] previous years	18
26	[prep] the previous years	18
27	[prep] [art] previous years	18
28	[prep] [adj] previous years	5
29	[prep] previous years [conj]	23
30	[prep] previous years [coord]	18