SN4 ""

No	Pattern	Freq
1	[pron] had [been] an [adj]	115
2	[noun] had [been] an [adj]	81
3	[pers pn] had [been] an [adj]	58
4	there had [been] an [adj]	41
5	there had [been] an [adj]	41
6	[ex0] had [been] an [adj]	41
7	[noun sg] had [been] an [adj]	40
8	it had [been] an [adj]	34
9	it had [been] an [adj]	34
10	[noun prp] had [been] an [adj]	33
11	he had [been] an [adj]	14
12	he had [been] an [adj]	14
13	[Wh det] had [been] an [adj]	9
14	[noun pl] had [been] an [adj]	8
15	what had [been] an [adj]	6
16	[adj] had [been] an [adj]	6
17	what had [been] an [adj]	6
18	[Wh pn] had [been] an [adj]	5
19	who had [been] an [adj]	5
20	who had [been] an [adj]	5
21	had [adv] [been] an [adj]	46
22	had [adv] [been] an [adj]	34
23	had not [been] an [adj]	12
24	had [not/n't] [been] an [adj]	12
25	had n't [been] an [adj]	7
26	had always [been] an [adj]	6
27	had always [been] an [adj]	6
28	had not [been] an [adj]	5
29	had [been] [verb] an [adj]	32
30	had [been] [vb pp] an [adj]	16