SN4 ""

No	Pattern	Freq
1	have been for [det] [noun]	71
2	have [been] for [det] [noun]	71
3	have [been] for [det] [noun pl]	43
4	have [been] for [det] year	36
5	have [been] for [det] years	34
6	have [been] for some [noun]	32
7	has [been] for [det] [noun]	31
8	have [been] for many [noun]	27
9	have [been] for [det] [noun sg]	26
10	have [been] for [det] time	19
11	have [been] for [det] time	19
12	had [been] for [det] [noun]	18
13	have [been] for [det] [noun]	16
14	have [been] for [det] month	5
15	have [been] for [det] months	5