SN4 ""

No	Pattern	Freq
31	have just been [verb] in	32
32	have previously been [verb] in	31
33	have long been [verb] in	31
34	have long been [verb] in	31
35	have previously been [verb] in	31
36	have [adv] been report in	30
37	have [adv] been reported in	30
38	have only been [verb] in	29
39	have only been [verb] in	29
40	have n't been [verb] in	27
41	have [adv] been describe in	27
42	have [adv] been include in	27
43	have [adv] been described in	27
44	have [adv] been included in	27
45	have [adv] been mentioned in	24
46	have [adv] been mention in	24
47	have since been [verb] in	23
48	have often been [verb] in	23
49	have often been [verb] in	23
50	have since been [verb] in	23
51	have always been [verb] in	22
52	have always been [verb] in	22
53	have all been [verb] in	20
54	have all been [verb] in	20
55	have [adv] been shown in	19
56	have [adv] been show in	19
57	have [adv] been consider in	18
58	have [adv] been considered in	18
59	have ever been [verb] in	17
60	have ever been [verb] in	17