SN4 ""

No	Pattern	Freq
1	[subord] [pers pn] had been	3500
2	if [pers pn] had be	1216
3	[subord] it had be	1094
4	[subord] he had be	855
5	[subord] they had be	627
6	[subord] she had be	552
7	as [pers pn] had be	502
8	[subord] i had be	244
9	than [pers pn] had be	243
10	after [pers pn] had be	240
11	because [pers pn] had be	219
12	when [pers pn] had be	184
13	though [pers pn] had be	170
14	where [pers pn] had be	169
15	since [pers pn] had be	105
16	although [pers pn] had be	94
17	[subord] we had be	74
18	whether [pers pn] had be	67
19	once [pers pn] had be	57
20	while [pers pn] had be	53
21	[subord] you had be	53
22	for [pers pn] had be	48
23	until [pers pn] had be	42
24	before [pers pn] had be	39
25	like [pers pn] had be	13
26	so [pers pn] had be	12
27	unless [pers pn] had be	11
28	whereas [pers pn] had be	7
29	considering [pers pn] had be	5