SN4 ""

No	Pattern	Freq
1	have [adv] been [vb pp] for some	14
2	have [not/n't] been [vb pp] for some	10
3	have not been [vb pp] for some	10
4	have not been [vb pp] for some	8
5	[noun] have been [vb pp] for some	48
6	[pron] have been [vb pp] for some	29
7	[noun sg] have been [vb pp] for some	29
8	[pers pn] have been [vb pp] for some	25
9	it have been [vb pp] for some	16
10	it have been [vb pp] for some	16
11	[noun pl] have been [vb pp] for some	15
12	[conj] have been [vb pp] for some	7
13	[modal v] have been [vb pp] for some	5
14	[vb mod] have been [vb pp] for some	5
15	have been [vb pp] [adv] for some	12
16	have been [vb pp] [adv] for some	6
17	have been [vb pp] [adv prt] for some	6
18	have been [vb pp] for some [noun]	90
19	have been [vb pp] for some [noun sg]	68
20	have been [vb pp] for some time	56
21	have been [vb pp] for some time	56
22	have been [vb pp] for some [noun pl]	22
23	have been [vb pp] for some years	15
24	have been [vb pp] for some year	15
25	have been [vb pp] for some reason	10
26	have been [vb pp] for some reason	10
27	have been [vb pp] for some [adj]	10
28	have been [vb pp] for some [adj]	8