SN4 ""

No	Pattern	Freq
1	it [be] [adj] whether [art]	106
2	it be [adj] whether [art]	106
3	it [be] [adj] whether the	90
4	it [is] [adj] whether [art]	88
5	it is [adj] whether [art]	87
6	it [be] doubtful whether [art]	34
7	it [be] doubtful whether [art]	34
8	it [be] unclear whether [art]	27
9	it [be] unclear whether [art]	27
10	it was [adj] whether [art]	18
11	it [was/were] [adj] whether [art]	18
12	it [be] [adj] whether a	14
13	it [be] questionable whether [art]	11
14	it [be] uncertain whether [art]	11
15	it [be] questionable whether [art]	11
16	it [be] uncertain whether [art]	11
17	it [be] immaterial whether [art]	8
18	it [be] immaterial whether [art]	8
19	it [be] debatable whether [art]	7
20	it [be] debatable whether [art]	7