SN4 ""

No	Pattern	Freq
1	[pron] have been a [det]	46
2	[ex0] have been a [det]	35
3	there have been a [det]	35
4	there have been a [det]	35
5	[pers pn] have been a [det]	11
6	[vb mod] have been a [det]	7
7	[modal v] have been a [det]	7
8	it have been a [det]	6
9	it have been a [det]	6
10	[adv] have been a [det]	6
11	[adv] have been a [det]	6
12	have [adv] been a [det]	6
13	have [adv] been a [det]	6
14	have been [verb] a [det]	58
15	have been [vb pp] a [det]	39
16	have been [adv] a [det]	35
17	have been [adv] a [det]	31
18	have been [v-ing] a [det]	17
19	have been [prep] a [det]	14
20	have been [prep] a [det]	14
21	have been quite a [det]	11
22	have been quite a [det]	11
23	have been only a [det]	7
24	have been only a [det]	7
25	have been there a [det]	6
26	have been there a [det]	6
27	have been a [noun sg] [det]	27
28	have been a [noun] [det]	27
29	have been a [adj] [det]	18
30	have been a [adj] [det]	16