SN4 ""

No	Pattern	Freq
1	it have been [vb pp] [conj] [noun]	290
2	it have be [vb pp] that [noun]	281
3	it have be [vb pp] that [noun]	281
4	it have be [vb pp] [that] [noun]	281
5	it has be [vb pp] [conj] [noun]	242
6	it have be [vb pp] [conj] [noun sg]	95
7	it have be [vb pp] [conj] [noun prp]	93
8	it have be [vb pp] [conj] [noun pl]	88
9	it have be suggested [conj] [noun]	71
10	it had be [vb pp] [conj] [noun]	37
11	it have be shown [conj] [noun]	30
12	it have be argued [conj] [noun]	27
13	it have be claimed [conj] [noun]	14
14	it have be found [conj] [noun]	14
15	it have be said [conj] [noun]	12
16	it have be [vb pp] [conj] [n mass]	11
17	it 's be [vb pp] [conj] [noun]	10
18	it have be estimated [conj] [noun]	9
19	it have be reported [conj] [noun]	8
20	it have be held [conj] [noun]	8
21	it have be assumed [conj] [noun]	7
22	it have be thought [conj] [noun]	7
23	it have be [vb pp] [conj] people	6
24	it have be confirmed [conj] [noun]	6
25	it have be [vb pp] [conj] people	6
26	it have be [vb pp] [subord] [noun]	6
27	it have be accepted [conj] [noun]	5
28	it have be [vb pp] [conj] women	5
29	it have be [vb pp] [conj] woman	5