SN4 ""

No	Pattern	Freq
1	[conj] there have been an [adj]	46
2	[noun] there have been an [adj]	25
3	[subord] there have been an [adj]	18
4	[coord] there have been an [adj]	15
5	year there have been an [adj]	15
6	[noun pl] there have been an [adj]	15
7	years there have been an [adj]	14
8	that there have been an [adj]	13
9	[that] there have been an [adj]	13
10	that there have been an [adj]	13
11	[noun sg] there have been an [adj]	10
12	and there have been an [adj]	8
13	and there have been an [adj]	8
14	but there have been an [adj]	7
15	but there have been an [adj]	7
16	[adj] there have been an [adj]	5
17	[num] there have been an [adj]	5
18	time there have been an [adj]	5
19	time there have been an [adj]	5
20	there [modal v] have been an [adj]	17
21	there [vb mod] have been an [adj]	17
22	there may have been an [adj]	7
23	there may have been an [adj]	7
24	there have [adv] been an [adj]	24
25	there have [adv] been an [adj]	21
26	there have always been an [adj]	6
27	there have always been an [adj]	6
28	there have been an [adj] [adj]	8
29	there have been an [adj] [adj]	7
30	there have been an [adj] [noun]	143