SN4 ""

No	Pattern	Freq
1	have been [verb] for [noun]	310
2	have [been] [verb] for [noun]	310
3	have [been] [vb pp] for [noun]	237
4	have [been] [verb] for [noun sg]	159
5	have [been] [verb] for [noun pl]	119
6	have [been] [v-ing] for [noun]	73
7	have [been] [verb] for year	35
8	have [been] [verb] for years	35
9	have [been] [verb] for [noun prp]	28
10	have [been] use for [noun]	23
11	have [been] used for [noun]	22
12	have [been] make for [noun]	12
13	have [been] selected for [noun]	11
14	have [been] made for [noun]	11
15	have [been] select for [noun]	11
16	have [been] [verb] for centuries	10
17	have [been] [verb] for century	10
18	have [been] develop for [noun]	9
19	have [been] developed for [noun]	9
20	have [been] report for [noun]	7
21	have [been] do for [noun]	7
22	have [been] looking for [noun]	6
23	have [been] wait for [noun]	6
24	have [been] waiting for [noun]	6
25	have [been] doing for [noun]	6
26	have [been] look for [noun]	6
27	have [been] try for [noun]	5
28	have [been] accepted for [noun]	5
29	have [been] designed for [noun]	5
30	have [been] [verb] for months	5