SN4 ""

No	Pattern	Freq
1	[adj] [prep] [det] years	218
2	[adj] for [det] years	151
3	[adj] for [det] years	151
4	[adj] [prep] [det] years	147
5	[adj] [prep] many years	93
6	[det] [prep] [det] years	42
7	[adj] [prep] several years	41
8	[adj] [prep] some years	38
9	[adj] of [det] years	21
10	[adj] of [det] years	21
11	[adj] [prep] those years	19
12	[num] [prep] [det] years	16
13	empty [prep] [det] years	13
14	empty [prep] [det] years	13
15	[adj] [prep] these years	12
16	this [prep] [det] years	8
17	[adj] over [det] years	8
18	[adj] until [det] years	8
19	[adj] until [det] years	8
20	[adj] over [det] years	8
21	this [prep] [det] years	8
22	[adj -est] [prep] [det] years	8
23	that [prep] [det] years	8
24	that [prep] [det] years	8
25	[adj] past [det] years	7
26	available [prep] [det] years	7
27	[adj] in [det] years	7
28	these [prep] [det] years	7
29	[adj] past [det] years	7
30	available [prep] [det] years	7