SN4 ""

No	Pattern	Freq
1	who had been [adj]	310
2	who had [been] [adj]	310
3	who had be [adj]	310
4	who had [be] [adj]	310
5	who had [be] [adj]	282
6	who had [be] involved	29
7	who had [be] involved	29
8	who had [be] responsible	17
9	who had [be] responsible	17
10	who had [be] unable	16
11	who had [be] unable	16
12	who had [be] [num]	15
13	who had [be] one	11
14	who had [be] one	11
15	who had [be] prime	10
16	who had [be] prime	10
17	who had [be] present	9
18	who had [be] present	9
19	who had [be] instrumental	7
20	who had [be] absent	7
21	who had [be] absent	7
22	who had [be] active	7
23	who had [be] instrumental	7
24	who had [be] active	7
25	who had [be] foreign	6
26	who had [be] foreign	6
27	who had [be] [num ord]	6
28	who had [be] due	5
29	who had [be] due	5
30	who had [be] assistant	5