SN4 ""

No	Pattern	Freq
1	have been [verb] for a [noun sg]	248
2	have been [vb pp] for a [noun]	160
3	have been [v-ing] for a [noun]	108
4	had been [verb] for a [noun]	72
5	has been [verb] for a [noun]	70
6	have been [verb] for a [noun]	62
7	have been [verb] for a year	24
8	have been [verb] for a year	24
9	have been [verb] for a number	18
10	have been [verb] for a number	18
11	've been [verb] for a [noun]	17
12	have been [verb] for a [noun]	16
13	's been [verb] for a [noun]	15
14	have been made for a [noun]	12
15	have been make for a [noun]	12
16	have been [verb] for a week	11
17	'd been [verb] for a [noun]	11
18	have been [verb] for a [n mass]	11
19	have been [verb] for a week	11
20	have been look for a [noun]	11
21	have been [verb] for a while	10
22	have been waiting for a [noun]	10
23	have been looking for a [noun]	10
24	have been [verb] for a while	10
25	have been wait for a [noun]	10
26	have been jail for a [noun]	9
27	have been taken for a [noun]	9
28	have been jailed for a [noun]	9
29	have been take for a [noun]	9
30	have been [verb] for a couple	8