SN4 ""

No	Pattern	Freq
1	[noun] had [been] [vb pp] for	542
2	[pron] had [been] [vb pp] for	316
3	[noun sg] had [been] [vb pp] for	284
4	[pers pn] had [been] [vb pp] for	168
5	[noun pl] had [been] [vb pp] for	160
6	[Wh det] had [been] [vb pp] for	83
7	which had [been] [vb pp] for	76
8	which had [been] [vb pp] for	76
9	[noun prp] had [been] [vb pp] for	76
10	[conj] had [been] [vb pp] for	59
11	[Wh pn] had [been] [vb pp] for	58
12	who had [been] [vb pp] for	56
13	who had [been] [vb pp] for	56
14	it had [been] [vb pp] for	48
15	it had [been] [vb pp] for	48
16	he had [been] [vb pp] for	45
17	he had [been] [vb pp] for	45
18	[that] had [been] [vb pp] for	38
19	that had [been] [vb pp] for	38
20	that had [been] [vb pp] for	38
21	they had [been] [vb pp] for	33
22	they had [been] [vb pp] for	32
23	[adj] had [been] [vb pp] for	29
24	she had [been] [vb pp] for	26
25	she had [been] [vb pp] for	26
26	[n mass] had [been] [vb pp] for	22
27	[num] had [been] [vb pp] for	17
28	[coord] had [been] [vb pp] for	14
29	and had [been] [vb pp] for	11
30	and had [been] [vb pp] for	11