SN4 ""

No	Pattern	Freq
1	have been [adj] for some	99
2	has been [adj] for [det]	73
3	had been [adj] for [det]	71
4	have been [adj] for [det]	36
5	have been [adj] for many	30
6	have been [adj] for [det]	29
7	have been responsible for [det]	26
8	have been [adj] for several	21
9	have been [adj] for most	13
10	have been available for [det]	12
11	have been empty for [det]	12
12	have been ill for [det]	11
13	have been [adj] for more	10
14	have been dead for [det]	9
15	's been [adj] for [det]	9
16	have been [adj] for this	7
17	have been [adj] for any	7
18	have been clear for [det]	6
19	have been [adj] for much	6
20	have been [adj] for all	6
21	have been concerned for [det]	6
22	have been [adj] for those	5
23	have been [adj] for that	5
24	have been possible for [det]	5
25	have been asleep for [det]	5
26	have been unwell for [det]	5