SN4 ""

No	Pattern	Freq
1	[pron] had [been] for	81
2	[pers pn] had [been] for	72
3	[noun] had [been] for	47
4	it had [been] for	40
5	it had [been] for	40
6	[noun sg] had [been] for	34
7	they had [been] for	15
8	they had [been] for	15
9	[conj] had [been] for	12
10	and had [been] for	11
11	[coord] had [been] for	11
12	and had [been] for	11
13	he had [been] for	11
14	he had [been] for	11
15	[noun pl] had [been] for	9
16	[Wh pn] had [been] for	5
17	who had [been] for	5
18	who had [been] for	5
19	had [adv] [been] for	202
20	had not [been] for	185
21	had [not/n't] [been] for	185
22	had n't [been] for	121
23	had not [been] for	64
24	had [adv] [been] for	17
25	had [been] [verb] for	1516
26	had [been] [vb pp] for	1015
27	had [been] [v-ing] for	496
28	had [been] [adj] for	389
29	had [been] [adj] for	386
30	had [been] [adv] for	122