SN4 ""

No	Pattern	Freq
31	have been [verb] [prep] some reason	10
32	to have been [verb] [prep] some [noun]	9
33	have been [verb] [prep] some cases	9
34	have been [verb] [prep] some case	9
35	have been [verb] [prep] some detail	8
36	have been [verb] [prep] some kind	8
37	have been [verb] [prep] some detail	8
38	have been [verb] [prep] some kind	8
39	have been say [prep] some [noun]	7
40	have been [verb] [prep] some quarters	7
41	have been recognised [prep] some [noun]	7
42	have been recognise [prep] some [noun]	7
43	have been [verb] [prep] some quarter	7
44	have been [verb] [prep] some sort	6
45	have been [verb] [prep] some study	6
46	have been find [prep] some [noun]	6
47	have been [verb] [prep] some writer	6
48	have been [verb] [prep] some writers	6
49	have been made [prep] some [noun]	6
50	have been [verb] [prep] some studies	6
51	've been [verb] [prep] some [noun]	6
52	have been make [prep] some [noun]	6
53	have been found [prep] some [noun]	6
54	have been [verb] [prep] some sort	6
55	have been [verb] [prep] some degree	5
56	have been establish [prep] some [noun]	5
57	have been established [prep] some [noun]	5
58	have been running [prep] some [noun]	5
59	have been [verb] [prep] some patients	5
60	have been [verb] [prep] some people	5