SN4 ""

No	Pattern	Freq
1	[modal v] have been [adv prt]	160
2	[vb mod] have been [adv prt]	160
3	would have been [adv prt]	66
4	would have been [adv prt]	56
5	must have been [adv prt]	36
6	must have been [adv prt]	36
7	[adv] have been [adv prt]	32
8	should have been [adv prt]	23
9	should have been [adv prt]	23
10	[not/n't] have been [adv prt]	16
11	not have been [adv prt]	16
12	[adv] have been [adv prt]	16
13	might have been [adv prt]	14
14	might have been [adv prt]	14
15	'd have been [adv prt]	10
16	may have been [adv prt]	9
17	may have been [adv prt]	9
18	could have been [adv prt]	9
19	could have been [adv prt]	9
20	n't have been [adv prt]	9
21	not have been [adv prt]	7
22	have been [verb] [adv prt]	492
23	have been [vb pp] [adv prt]	420
24	have been [v-ing] [adv prt]	66
25	have been [adv] [adv prt]	50
26	have been [adv] [adv prt]	50
27	have been bring [adv prt]	33
28	have been brought [adv prt]	32
29	have been well [adv prt]	31
30	have been better [adv prt]	31