SN4 ""

No	Pattern	Freq
31	things [conj] have been	47
32	things that have been	47
33	things that have been	47
34	things [pron] have been	40
35	things [pers pn] have been	32
36	things might have been	23
37	things might have been	23
38	things could have been	14
39	things could have been	14
40	things would have been	12
41	things would have been	12
42	things i have been	11
43	things we have been	11
44	things we have been	11
45	things i have been	11
46	things which have been	8
47	things [Wh det] have been	8
48	things which have been	8
49	things have [adv] been	32
50	things have [not/n't] been	17
51	things have not been	17
52	things have [adv] been	15
53	things have n't been	9
54	things have not been	8
55	things have been [verb]	74
56	things have been [vb pp]	49
57	things have been [v-ing]	25
58	things have been [adv]	23
59	things have been [adj]	22
60	things have been [adv]	22