SN4 ""

No	Pattern	Freq
1	[noun] have be [vb pp] for years	16
2	[noun sg] have be [vb pp] for years	9
3	[noun pl] have be [vb pp] for years	5
4	have [adv] be [vb pp] for years	10
5	have not be [vb pp] for years	9
6	have [not/n't] be [vb pp] for years	9
7	have not be [vb pp] for years	5
8	have be [vb pp] for [adj] years	162
9	have be [vb pp] for [num] years	92
10	have be [vb pp] for [det] years	70
11	have be [vb pp] for many years	50
12	have be [vb pp] for many years	50
13	have be [vb pp] for some years	15
14	have be [vb pp] for some years	15
15	have be [vb pp] for two years	15
16	have be [vb pp] for two years	15
17	have be [vb pp] for three years	14
18	have be [vb pp] for three years	14
19	have be [vb pp] for seven years	8
20	have be [vb pp] for seven years	8
21	have be [vb pp] for five years	7
22	have be [vb pp] for five years	7
23	have be [vb pp] for 12 years	5
24	have be [vb pp] for 12 years	5
25	have be [vb pp] for several years	5
26	have be [vb pp] for several years	5
27	have be [vb pp] for years [prep]	9
28	have be [vb pp] for years [prep]	9