SN4 ""

No	Pattern	Freq
1	[adv] [adj] [pers pn] is for	77
2	[adv] [adj] [pers pn] is for	76
3	[adv] difficult [pers pn] is for	20
4	[adv] difficult [pers pn] is for	20
5	[adv] important [pers pn] is for	17
6	[adv] important [pers pn] is for	17
7	[adv] [conj] [pers pn] is for	13
8	[adv] [subord] [pers pn] is for	12
9	[adv] as [pers pn] is for	7
10	[adv] as [pers pn] is for	7
11	[adv] easy [pers pn] is for	6
12	[adv] hard [pers pn] is for	5
13	[adv] easy [pers pn] is for	5
14	[adv] hard [pers pn] is for	5
15	[adv] [pers pn] is [adj] for	117
16	[adv] [pers pn] is [adj] for	106
17	[adv] [pers pn] is [verb] for	31
18	[adv] [pers pn] is possible for	23
19	[adv] [pers pn] is possible for	23
20	[adv] [pers pn] is [noun] for	20
21	[adv] [pers pn] is [noun sg] for	20
22	[adv] [pers pn] is time for	18
23	[adv] [pers pn] is time for	18
24	[adv] [pers pn] is [v-ing] for	18
25	[adv] [pers pn] is important for	15
26	[adv] [pers pn] is important for	15
27	[adv] [pers pn] is [vb pp] for	13
28	[adv] [pers pn] is good for	10
29	[adv] [pers pn] is [adj -er] for	7
30	[adv] [pers pn] is necessary for	6