SN4 ""

No	Pattern	Freq
1	[conj] it have been [vb pp] from	28
2	[subord] it have been [vb pp] from	19
3	[noun] it have been [vb pp] from	15
4	[noun prp] it have been [vb pp] from	9
5	that it have been [vb pp] from	8
6	[that] it have been [vb pp] from	8
7	that it have been [vb pp] from	8
8	atlantic it have been [vb pp] from	7
9	atlantic it have been [vb pp] from	7
10	[noun sg] it have been [vb pp] from	6
11	it [vb mod] have been [vb pp] from	10
12	it [modal v] have been [vb pp] from	10
13	it have [adv] been [vb pp] from	21
14	it have [adv] been [vb pp] from	17
15	it have been [vb pp] [adv] from	12
16	it have been [vb pp] [adv] from	7
17	it have been [vb pp] [adv prt] from	5
18	it have been [vb pp] from [art]	30
19	it have been [vb pp] from [art]	30
20	it have been [vb pp] from the	26
21	it have been [vb pp] from the	26
22	it have been [vb pp] from [noun]	18
23	it have been [vb pp] from [adj]	14
24	it have been [vb pp] from [noun prp]	11
25	it have been [vb pp] from [pron]	9
26	it have been [vb pp] from [det]	7
27	it have been [vb pp] from [pos pn]	7
28	it have been [vb pp] from [adj]	6
29	it have been [vb pp] from [noun sg]	5