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	[noun prp] had been [vb pp] for	76
8	which had been [vb pp] for	76
9	which 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	[verb] had been [vb pp] for	11
30	and had been [vb pp] for	11