SN4 ""

No	Pattern	Freq
1	[verb] [be] [vb pp] for [det] years	70
2	have [be] [vb pp] for [det] years	70
3	[vb -s] [be] [vb pp] for [det] years	33
4	has [be] [vb pp] for [det] years	31
5	[vb base] [be] [vb pp] for [det] years	19
6	had [be] [vb pp] for [det] years	18
7	[vb past] [be] [vb pp] for [det] years	18
8	have [be] [vb pp] for [det] years	16
9	[noun] [be] [vb pp] for [det] years	12
10	[adv] [be] [vb pp] for [det] years	12
11	[not/n't] [be] [vb pp] for [det] years	9
12	not [be] [vb pp] for [det] years	9
13	[noun sg] [be] [vb pp] for [det] years	8
14	not [be] [vb pp] for [det] years	8
15	[vb mod] [be] [vb pp] for [det] years	7
16	[modal v] [be] [vb pp] for [det] years	7
17	[be] [adv] [vb pp] for [det] years	12
18	[be] [adv] [vb pp] for [det] years	11
19	[be] [vb pp] [adv] for [det] years	11
20	[be] [vb pp] [adv prt] for [det] years	7
21	[be] [vb pp] for a [det] years	6
22	[be] [vb pp] for a [det] years	6
23	[be] [vb pp] for [art] [det] years	6
24	[be] [vb pp] for [art] [det] years	6
25	[be] [vb pp] for [det] [adj] years	12
26	[be] [vb pp] for [det] [num] years	10
27	[be] [vb pp] for [det] years [prep]	26
28	[be] [vb pp] for [det] years [prep]	26
29	[be] [vb pp] for [det] years [conj]	19
30	[be] [vb pp] for [det] years [coord]	9