SN4 ""

No	Pattern	Freq
1	[noun] have [be] shown to [be]	121
2	[noun sg] have [be] shown to [be]	69
3	[noun pl] have [be] shown to [be]	39
4	[pron] have [be] shown to [be]	23
5	which have [be] shown to [be]	13
6	[Wh det] have [be] shown to [be]	13
7	which have [be] shown to [be]	13
8	[conj] have [be] shown to [be]	12
9	[noun prp] have [be] shown to [be]	10
10	[pers pn] have [be] shown to [be]	8
11	[coord] have [be] shown to [be]	6
12	that have [be] shown to [be]	5
13	it have [be] shown to [be]	5
14	that have [be] shown to [be]	5
15	[that] have [be] shown to [be]	5
16	it have [be] shown to [be]	5
17	have [adv] [be] shown to [be]	38
18	have [adv] [be] shown to [be]	35
19	have previously [be] shown to [be]	8
20	have previously [be] shown to [be]	8
21	have also [be] shown to [be]	7
22	have also [be] shown to [be]	7
23	have recently [be] shown to [be]	5
24	have recently [be] shown to [be]	5
25	have [be] shown to [be] [adj]	78
26	have [be] shown to [be] [adj]	73
27	have [be] shown to [be] [adv]	47
28	have [be] shown to [be] [adv]	45
29	have [be] shown to [be] [art]	20
30	have [be] shown to [be] [art]	20