SN4 ""

No	Pattern	Freq
1	[conj] [pron] is for	265
2	[subord] [pron] is for	169
3	[adj] [pron] is for	121
4	[adj] [pron] is for	89
5	as [pron] is for	86
6	as [pron] is for	86
7	[noun] [pron] is for	71
8	[coord] [pron] is for	64
9	[noun sg] [pron] is for	61
10	[pron] [pron] is for	52
11	than [pron] is for	48
12	than [pron] is for	48
13	[Wh det] [pron] is for	46
14	and [pron] is for	43
15	and [pron] is for	43
16	[adv] [pron] is for	43
17	what [pron] is for	41
18	what [pron] is for	41
19	[adv] [pron] is for	38
20	[verb] [pron] is for	35
21	[that] [pron] is for	32
22	that [pron] is for	32
23	that [pron] is for	32
24	[prep] [pron] is for	23
25	[prep] [pron] is for	23
26	difficult [pron] is for	22
27	difficult [pron] is for	22
28	but [pron] is for	19
29	but [pron] is for	19
30	important [pron] is for	17