SN4 ""

No	Pattern	Freq
1	have been [verb] for [det] [noun]	91
2	have been [vb pp] for [det] [noun]	67
3	have been [verb] for [det] [noun sg]	52
4	have been [verb] for [det] [noun pl]	35
5	have been [verb] for some [noun]	30
6	have been [v-ing] for [det] [noun]	24
7	have been [verb] for [det] year	24
8	have been [verb] for [det] years	23
9	have been [verb] for [det] time	23
10	have been [verb] for [det] time	23
11	have been [verb] for many [noun]	19
12	have been [verb] for this [noun]	18
13	have been know for [det] [noun]	10
14	have been known for [det] [noun]	10
15	have been [verb] for several [noun]	9
16	have been use for [det] [noun]	5
17	have been used for [det] [noun]	5
18	have been [verb] for [det] reason	5