SN4 ""

No	Pattern	Freq
1	have been [adj] for some [noun]	95
2	have been [adj] for [det] [noun sg]	88
3	have been [adj] for [det] time	71
4	have been [adj] for [det] time	71
5	have been [adj] for [det] [noun pl]	68
6	had been [adj] for [det] [noun]	55
7	has been [adj] for [det] [noun]	54
8	have been [adj] for [det] years	41
9	have been [adj] for [det] year	41
10	have been [adj] for many [noun]	23
11	have been [adj] for [det] [noun]	21
12	have been [adj] for several [noun]	21
13	have been [adj] for [det] [noun]	15
14	have been empty for [det] [noun]	10
15	have been ill for [det] [noun]	10
16	have been available for [det] [noun]	9
17	have been [adj] for [det] months	7
18	have been [adj] for [det] month	7
19	have been dead for [det] [noun]	7
20	have been clear for [det] [noun]	6
21	have been concerned for [det] [noun]	6
22	have been responsible for [det] [noun]	6
23	have been unwell for [det] [noun]	5
24	's been [adj] for [det] [noun]	5