SN4 ""

No	Pattern	Freq
1	[verb] [adv] [prep] two years	70
2	[verb] [adv prt] [prep] two years	47
3	[verb] [adv] for two years	35
4	[verb] [adv] [prep] two years	23
5	[verb] up [prep] two years	23
6	[verb] up [prep] two years	23
7	[vb pp] [adv] [prep] two years	21
8	[verb] [adv] to two years	18
9	[vb infin] [adv] [prep] two years	13
10	[vb past] [adv] [prep] two years	12
11	[v-ing] [adv] [prep] two years	10
12	take [adv] [prep] two years	8
13	[verb] on [prep] two years	8
14	[verb] [adv] in two years	8
15	[verb] on [prep] two years	8
16	[to-vb] [adv] [prep] two years	6
17	go [adv] [prep] two years	6
18	take [adv] [prep] two years	6
19	stay [adv] [prep] two years	6
20	[verb] out [prep] two years	5
21	[verb] out [prep] two years	5
22	[verb] over [prep] two years	5
23	[verb] there [prep] two years	5
24	[verb] over [prep] two years	5
25	[verb] [adv] within two years	5
26	[verb] there [prep] two years	5