SN4 ""

No	Pattern	Freq
1	have been [adv] for [adj] years	56
2	have [been] [adv] for [num] years	41
3	have [been] [adv] for [adj] years	38
4	have [been] [adv prt] for [adj] years	18
5	has [been] [adv] for [adj] years	15
6	have [been] there for [adj] years	14
7	had [been] [adv] for [adj] years	14
8	have [been] there for [adj] years	14
9	have [been] here for [adj] years	13
10	have [been] here for [adj] years	13
11	have [been] [adv] for [det] years	13
12	have [been] around for [adj] years	12
13	have [been] around for [adj] years	12
14	've [been] [adv] for [adj] years	11
15	have [been] [adv] for many years	8
16	have [been] [adv] for many years	8
17	have [been] [adv] for [adj] years	8
18	have [been] together for [adj] years	8
19	have [been] together for [adj] years	8
20	have [been] [adv] for two years	6
21	have [been] [adv] for two years	6