SN4 ""

No	Pattern	Freq
1	[noun] to what [modal v]	88
2	[conj] to what [modal v]	84
3	as to what [modal v]	83
4	as to what [modal v]	83
5	[subord] to what [modal v]	83
6	[noun sg] to what [modal v]	73
7	[verb] to what [modal v]	54
8	[vb pp] to what [modal v]	25
9	[adj] to what [modal v]	25
10	[adj] to what [modal v]	23
11	[adv] to what [modal v]	21
12	[adv] to what [modal v]	14
13	[noun pl] to what [modal v]	12
14	limit to what [modal v]	10
15	[vb infin] to what [modal v]	8
16	[pron] to what [modal v]	8
17	[adv prt] to what [modal v]	7
18	[to-vb] to what [modal v]	6
19	limit to what [modal v]	5
20	[pers pn] to what [modal v]	5
21	[vb -s] to what [modal v]	5
22	contrary to what [modal v]	5
23	contrary to what [modal v]	5
24	[vb base] to what [modal v]	5
25	limits to what [modal v]	5
26	to what [pron] [modal v]	177
27	to what [pers pn] [modal v]	164
28	to what [noun] [modal v]	121
29	to what [noun sg] [modal v]	77
30	to what extent [modal v]	59