SN4 ""

No	Pattern	Freq
1	[subord] [pers pn] had been	3500
2	if [pers pn] have been	2152
3	[subord] it have been	1971
4	[subord] they have been	1433
5	[subord] he have been	1390
6	[subord] [pers pn] 've been	954
7	[subord] [pers pn] have been	944
8	[subord] [pers pn] 'd been	898
9	[subord] i have been	893
10	[subord] [pers pn] has been	891
11	as [pers pn] have been	887
12	[subord] she have been	874
13	because [pers pn] have been	708
14	[subord] you have been	607
15	after [pers pn] have been	501
16	when [pers pn] have been	495
17	[subord] we have been	393
18	[subord] [pers pn] 's been	383
19	than [pers pn] have been	382
20	since [pers pn] have been	368
21	though [pers pn] have been	335
22	where [pers pn] have been	325
23	once [pers pn] have been	231
24	although [pers pn] have been	218
25	while [pers pn] have been	171
26	whether [pers pn] have been	142
27	until [pers pn] have been	113
28	cos [pers pn] have been	106
29	so [pers pn] have been	100
30	before [pers pn] have been	81