SN4 ""

No	Pattern	Freq
1	[noun] [conj] [pers pn] is [adj] for	129
2	[noun] [conj] [pers pn] is [adj] for	126
3	[noun] [conj] [pers pn] is [verb] for	33
4	[noun] [conj] [pers pn] is [vb pp] for	18
5	[noun] [conj] [pers pn] is difficult for	11
6	[noun] [conj] [pers pn] is difficult for	11
7	[noun] [conj] [pers pn] is [v-ing] for	11
8	[noun] [conj] [pers pn] is responsible for	10
9	[noun] [conj] [pers pn] is responsible for	10
10	[noun] [conj] [pers pn] is [adv] for	8
11	[noun] [conj] [pers pn] is good for	8
12	[noun] [conj] [pers pn] is good for	7
13	[noun] [conj] [pers pn] is possible for	7
14	[noun] [conj] [pers pn] is important for	7
15	[noun] [conj] [pers pn] is possible for	7
16	[noun] [conj] [pers pn] is [noun sg] for	7
17	[noun] [conj] [pers pn] is [noun] for	7
18	[noun] [conj] [pers pn] is important for	7
19	[noun] [conj] [pers pn] is easy for	6
20	[noun] [conj] [pers pn] is easy for	6
21	[noun] [conj] [pers pn] is safe for	5
22	[noun] [conj] [pers pn] is used for	5
23	[noun] [conj] [pers pn] is use for	5
24	[adj] [noun] [conj] [pers pn] is for	30
25	[art] [noun] [conj] [pers pn] is for	21
26	[art] [noun] [conj] [pers pn] is for	21
27	[prep] [noun] [conj] [pers pn] is for	18
28	[prep] [noun] [conj] [pers pn] is for	18
29	[adj] [noun] [conj] [pers pn] is for	15
30	the [noun] [conj] [pers pn] is for	13