SN4 ""

No	Pattern	Freq
1	[verb] it [prep] [adj] years	78
2	[prep] it [prep] [adj] years	34
3	[prep] it [prep] [adj] years	34
4	[vb pp] it [prep] [adj] years	19
5	[v-ing] it [prep] [adj] years	19
6	[vb past] it [prep] [adj] years	18
7	do it [prep] [adj] years	17
8	[to-vb] it [prep] [adj] years	10
9	have it [prep] [adj] years	8
10	[vb infin] it [prep] [adj] years	8
11	on it [prep] [adj] years	7
12	doing it [prep] [adj] years	7
13	on it [prep] [adj] years	7
14	had it [prep] [adj] years	5
15	it [verb] [prep] [adj] years	40
16	it [vb -s] [prep] [adj] years	24
17	it be [prep] [adj] years	19
18	it [be] [prep] [adj] years	19
19	it was [prep] [adj] years	13
20	it [was/were] [prep] [adj] years	13
21	it have [prep] [adj] years	11
22	it [adv] [prep] [adj] years	11
23	it has [prep] [adj] years	11
24	it [vb past] [prep] [adj] years	10
25	it [adv prt] [prep] [adj] years	7
26	it [adj] [prep] [adj] years	6
27	it [is] [prep] [adj] years	5
28	it [adj] [prep] [adj] years	5
29	it [prep] [adv] [adj] years	22
30	it [prep] [adv] [adj] years	22