SN4 ""

No	Pattern	Freq
1	[pron] have been [adj] years	80
2	[pers pn] have been [adj] years	73
3	it have been [adj] years	43
4	it have been [adj] years	43
5	[vb mod] have been [adj] years	30
6	[modal v] have been [adj] years	30
7	[noun] have been [adj] years	20
8	would have been [adj] years	17
9	would have been [adj] years	15
10	[noun sg] have been [adj] years	10
11	i have been [adj] years	9
12	i have been [adj] years	9
13	he have been [adj] years	8
14	he have been [adj] years	8
15	she have been [adj] years	6
16	[adj] have been [adj] years	6
17	she have been [adj] years	6
18	may have been [adj] years	5
19	[noun pl] have been [adj] years	5
20	[conj] have been [adj] years	5
21	may have been [adj] years	5
22	[noun prp] have been [adj] years	5
23	have been [verb] [adj] years	85
24	have been [vb pp] [adj] years	71
25	have been [adv] [adj] years	66
26	have been [adv] [adj] years	66
27	have been [prep] [adj] years	60
28	have been [prep] [adj] years	60
29	have been for [adj] years	45
30	have been for [adj] years	45