SN4 ""

No	Pattern	Freq
1	had be [conj]	291
2	had [been] [conj]	281
3	had been [conj]	281
4	had [be] [subord]	135
5	had [be] when	84
6	had [be] when	84
7	had [be] [coord]	83
8	had [be] [that]	73
9	had [be] that	73
10	had [be] that	73
11	had [be] and	62
12	had [be] and	62
13	had [be] before	15
14	had [be] before	15
15	had [be] or	11
16	had [be] or	11
17	had [be] but	9
18	had [be] but	9
19	had [was/were] [conj]	8
20	had [be] because	7
21	had [be] since	7
22	had [be] since	7
23	had [be] because	7
24	had was [conj]	7
25	had [be] as	6
26	had [be] as	6
27	had [be] while	5
28	had [be] while	5