SN4 ""

No	Pattern	Freq
1	[noun] [prep] two years	792
2	[noun sg] [prep] two years	577
3	[noun] for two years	335
4	[noun] of two years	167
5	[noun pl] [prep] two years	121
6	[noun] in two years	89
7	[noun prp] [prep] two years	72
8	[noun] within two years	70
9	[noun] after two years	51
10	period [prep] two years	45
11	period [prep] two years	44
12	[noun] to two years	33
13	month [prep] two years	24
14	months [prep] two years	23
15	time [prep] two years	23
16	[n mass] [prep] two years	22
17	time [prep] two years	17
18	probation [prep] two years	14
19	probation [prep] two years	14
20	penalty [prep] two years	11
21	year [prep] two years	11
22	[noun] by two years	11
23	penalty [prep] two years	11
24	minimum [prep] two years	10
25	year [prep] two years	10
26	minimum [prep] two years	10
27	maximum [prep] two years	9
28	maximum [prep] two years	8
29	[noun] until two years	8
30	result [prep] two years	8