SN4 ""

No	Pattern	Freq
31	[conj] have been [noun pl]	27
32	there have been [noun pl]	24
33	there have been [noun pl]	24
34	might have been [noun pl]	22
35	might have been [noun pl]	22
36	could have been [noun pl]	20
37	could have been [noun pl]	20
38	[det] have been [noun pl]	19
39	[coord] have been [noun pl]	16
40	[num] have been [noun pl]	16
41	[vb base] have been [noun pl]	15
42	[Wh det] have been [noun pl]	12
43	which have been [noun pl]	11
44	which have been [noun pl]	11
45	seem have been [noun pl]	11
46	family have been [noun pl]	10
47	[vb pp] have been [noun pl]	10
48	that have been [noun pl]	9
49	that have been [noun pl]	9
50	[that] have been [noun pl]	9
51	not have been [noun pl]	8
52	family have been [noun pl]	8
53	well have been [noun pl]	8
54	should have been [noun pl]	8
55	and have been [noun pl]	8
56	and have been [noun pl]	8
57	[not/n't] have been [noun pl]	8
58	not have been [noun pl]	8
59	should have been [noun pl]	8
60	well have been [noun pl]	8