SN4 ""

No	Pattern	Freq
1	have been [verb] for [adj] years	301
2	have been [verb] for [num] year	197
3	have been [vb pp] for [adj] year	169
4	have been [v-ing] for [adj] year	140
5	has been [verb] for [adj] year	136
6	have been [verb] for [det] year	109
7	had been [verb] for [adj] year	82
8	have been [verb] for many year	63
9	have been [verb] for many year	63
10	have been [verb] for [adj] year	49
11	have been [verb] for two year	27
12	have been [verb] for two year	27
13	have been jail for [adj] year	26
14	have been jailed for [adj] year	26
15	have been [verb] for three year	25
16	have been [verb] for three year	25
17	have been [verb] for some year	24
18	have been [verb] for some year	24
19	have been run for [adj] year	20
20	have been [verb] for several year	19
21	've been [verb] for [adj] year	19
22	have been [verb] for several year	19
23	have been running for [adj] year	18
24	have been known for [adj] year	16
25	have been know for [adj] year	16
26	have been [verb] for five year	13
27	have been [verb] for five year	13
28	have been use for [adj] year	13
29	have been used for [adj] year	12
30	have been [verb] for seven year	12