SN4 ""

No	Pattern	Freq
1	[noun] as to the [noun sg]	751
2	[noun sg] as to the [noun]	625
3	[noun pl] as to the [noun]	287
4	[noun] as to the [noun pl]	172
5	doubt as to the [noun]	69
6	doubt as to the [noun]	43
7	[noun] as to the nature	39
8	[noun] as to the nature	39
9	question as to the [noun]	29
10	information as to the [noun]	28
11	information as to the [noun]	28
12	doubts as to the [noun]	26
13	evidence as to the [noun]	25
14	evidence as to the [noun]	25
15	clue as to the [noun]	24
16	[noun] as to the cause	23
17	[noun] as to the meaning	22
18	[noun] as to the meaning	22
19	[noun] as to the extent	21
20	guidance as to the [noun]	21
21	[noun] as to the extent	21
22	view as to the [noun]	21
23	guidance as to the [noun]	21
24	opinion as to the [noun]	20
25	[noun] as to the effect	19
26	[noun] as to the cause	18
27	idea as to the [noun]	16
28	agreement as to the [noun]	16
29	[noun] as to the content	16
30	question as to the [noun]	16