SN4 ""

No	Pattern	Freq
1	[verb] [prep] years	745
2	[verb] for years	514
3	[verb] for years	514
4	[vb pp] [prep] years	392
5	[v-ing] [prep] years	123
6	[verb] in years	80
7	[verb] in years	80
8	have [prep] years	75
9	[vb infin] [prep] years	64
10	[vb past] [prep] years	56
11	[vb base] [prep] years	40
12	[to-vb] [prep] years	38
13	[vb -s] [prep] years	32
14	know [prep] years	32
15	do [prep] years	31
16	see [prep] years	29
17	[verb] after years	28
18	[verb] after years	28
19	[verb] by years	28
20	[verb] by years	28
21	known [prep] years	27
22	seen [prep] years	26
23	last [prep] years	22
24	had [prep] years	21
25	done [prep] years	19
26	use [prep] years	19
27	have [prep] years	17
28	had [prep] years	17
29	used [prep] years	16
30	has [prep] years	16