SN4 ""

No	Pattern	Freq
1	for [adj] years [vb past]	102
2	[prep] [num] years [vb past]	95
3	[prep] [det] years [vb past]	80
4	[prep] [adj] years had	65
5	in [adj] years [vb past]	51
6	[prep] many years [vb past]	48
7	[prep] many years [vb past]	48
8	[prep] [adj] years [vb past]	36
9	of [adj] years [vb past]	28
10	[prep] recent years [vb past]	22
11	[prep] recent years [vb past]	22
12	[prep] two years [vb past]	15
13	[prep] two years [vb past]	15
14	after [adj] years [vb past]	14
15	[prep] [adj -er] years [vb past]	12
16	[prep] these years [vb past]	10
17	[prep] these years [vb past]	10
18	[prep] several years [vb past]	9
19	[prep] several years [vb past]	9
20	[prep] [adj] years became	8
21	[prep] late years [vb past]	8
22	[prep] some years [vb past]	8
23	[prep] some years [vb past]	8
24	[prep] [adj] years did	8
25	[prep] later years [vb past]	7
26	over [adj] years [vb past]	7
27	[prep] three years [vb past]	6
28	[prep] three years [vb past]	6
29	within [adj] years [vb past]	6
30	[prep] four years [vb past]	5