SN4 ""

No	Pattern	Freq
1	[vb mod] have been [verb] for [noun]	64
2	[modal v] have been [verb] for [noun]	64
3	[adv] have been [verb] for [noun]	15
4	could have been [verb] for [noun]	14
5	would have been [verb] for [noun]	14
6	could have been [verb] for [noun]	14
7	would have been [verb] for [noun]	14
8	should have been [verb] for [noun]	12
9	[adv] have been [verb] for [noun]	12
10	should have been [verb] for [noun]	12
11	may have been [verb] for [noun]	10
12	may have been [verb] for [noun]	10
13	might have been [verb] for [noun]	7
14	might have been [verb] for [noun]	7
15	have been [verb] [adv] for [noun]	7
16	have been [verb] [adv prt] for [noun]	5
17	have been [verb] for [art] [noun]	49
18	have been [verb] for [art] [noun]	49
19	have been [verb] for [adj] [noun]	39
20	have been [verb] for the [noun]	29
21	have been [verb] for the [noun]	29
22	have been [verb] for [adj] [noun]	21
23	have been [verb] for a [noun]	20
24	have been [verb] for a [noun]	16
25	have been [verb] for [det] [noun]	14
26	have been [verb] for [pron] [noun]	12
27	have been [verb] for [pos pn] [noun]	12
28	have been [verb] for [noun] [noun]	8
29	have been [verb] for [noun sg] [noun]	7
30	have been [verb] for some [noun]	6