SN4 ""

No	Pattern	Freq
1	[pron] have been [prep] [det] years	15
2	[conj] have been [prep] [det] years	10
3	[pers pn] have been [prep] [det] years	10
4	[coord] have been [prep] [det] years	10
5	and have been [prep] [det] years	8
6	and have been [prep] [det] years	8
7	[noun] have been [prep] [det] years	6
8	have been [verb] [prep] [det] years	118
9	have been [vb pp] [prep] [det] years	82
10	have been [adj] [prep] [det] years	41
11	have been [adj] [prep] [det] years	41
12	have been [v-ing] [prep] [det] years	36
13	have been know [prep] [det] years	15
14	have been known [prep] [det] years	15
15	have been [adv] [prep] [det] years	13
16	have been use [prep] [det] years	12
17	have been used [prep] [det] years	12
18	have been around [prep] [det] years	9
19	have been [adv prt] [prep] [det] years	9
20	have been around [prep] [det] years	9
21	have been empty [prep] [det] years	6
22	have been empty [prep] [det] years	6
23	have been establish [prep] [det] years	5
24	have been [noun] [prep] [det] years	5
25	have been established [prep] [det] years	5
26	have been [prep] [det] years [art]	8
27	have been [prep] [det] years [art]	8
28	have been [prep] [det] years a	5