SN4 ""

No	Pattern	Freq
1	had [adv] been [adj] [prep]	302
2	had [adv] been [adj] in	81
3	had always been [adj] [prep]	80
4	had [adv] been [adj] of	75
5	had never been [adj] [prep]	57
6	had [adv] been [adj] to	56
7	had [adv] been involved [prep]	27
8	had [adv] been involved [prep]	27
9	had [adv] been [adj] with	26
10	had long been [adj] [prep]	25
11	had already been [adj] [prep]	21
12	had also been [adj] [prep]	21
13	had [adv] been [adj] for	20
14	had [adv] been [num] [prep]	20
15	had [adv] been one [prep]	20
16	had [adv] been one [prep]	20
17	had [adv] been interested [prep]	20
18	had [adv] been interested [prep]	20
19	had previously been [adj] [prep]	18
20	had [adv] been [adj] about	18
21	had [adv] been [adj] on	17
22	had [adv] been [adj] by	14
23	had [adv] been [adj] at	14
24	had [adv] been [det] [prep]	11
25	had [adv] been aware [prep]	10
26	had [adv] been aware [prep]	10
27	had [adv] been [adj -er] [prep]	9
28	had all been [adj] [prep]	9
29	had once been [adj] [prep]	7
30	had [adv] been close [prep]	7