SN4 ""

No	Pattern	Freq
1	[verb] been for [det] years	34
2	have been for [det] years	34
3	[vb -s] been for [det] years	18
4	has been for [det] years	17
5	[vb past] been for [det] years	10
6	had been for [det] years	10
7	[vb base] been for [det] years	5
8	have been for [det] years	5
9	been [verb] for [det] years	114
10	been [vb pp] for [det] years	77
11	been [adj] for [det] years	42
12	been [adj] for [det] years	42
13	been [v-ing] for [det] years	37
14	been known for [det] years	15
15	been know for [det] years	15
16	been [adv] for [det] years	14
17	been use for [det] years	13
18	been used for [det] years	13
19	been [adv prt] for [det] years	9
20	been around for [det] years	9
21	been around for [det] years	9
22	been empty for [det] years	6
23	been empty for [det] years	6
24	been [adv] for [det] years	5
25	been for [det] years [art]	9
26	been for [det] years [art]	9
27	been for [det] years a	5