SN4 ""

No	Pattern	Freq
1	[noun] have been [vb pp] at [det]	53
2	[noun sg] have been [vb pp] at [det]	31
3	[pron] have been [vb pp] at [det]	25
4	[noun pl] have been [vb pp] at [det]	18
5	[pers pn] have been [vb pp] at [det]	17
6	[modal v] have been [vb pp] at [det]	16
7	[vb mod] have been [vb pp] at [det]	16
8	[adv] have been [vb pp] at [det]	12
9	it have been [vb pp] at [det]	11
10	it have been [vb pp] at [det]	11
11	could have been [vb pp] at [det]	9
12	could have been [vb pp] at [det]	9
13	[not/n't] have been [vb pp] at [det]	6
14	not have been [vb pp] at [det]	6
15	[Wh det] have been [vb pp] at [det]	6
16	[adv] have been [vb pp] at [det]	6
17	not have been [vb pp] at [det]	6
18	which have been [vb pp] at [det]	5
19	never have been [vb pp] at [det]	5
20	which have been [vb pp] at [det]	5
21	never have been [vb pp] at [det]	5
22	have [adv] been [vb pp] at [det]	41
23	have not been [vb pp] at [det]	29
24	have [not/n't] been [vb pp] at [det]	29
25	have not been [vb pp] at [det]	23
26	have [adv] been [vb pp] at [det]	12
27	have never been [vb pp] at [det]	7
28	have never been [vb pp] at [det]	7
29	have n't been [vb pp] at [det]	6
30	have been [vb pp] [adv] at [det]	11