SN4 ""

No	Pattern	Freq
1	it is [adv] [adv] for	67
2	it is [adj] [adv] for	57
3	it is [adj] [adv] for	54
4	it is [not/n't] [adv] for	38
5	it is not [adv] for	38
6	it is [verb] [adv] for	33
7	it is not [adv] for	32
8	it is [adv] [adv] for	29
9	it is [vb pp] [adv] for	27
10	it is all [adv] for	7
11	it is all [adv] for	7
12	it is n't [adv] for	6
13	it is [v-ing] [adv] for	6
14	it is too [adv] for	5
15	it is used [adv] for	5
16	it is available [adv] for	5
17	it is available [adv] for	5
18	it is possible [adv] for	5
19	it is use [adv] for	5
20	it is possible [adv] for	5
21	it is good [adv] for	5
22	it is too [adv] for	5
23	[conj] it is [adv] for	45
24	[coord] it is [adv] for	19
25	[subord] it is [adv] for	15
26	that it is [adv] for	11
27	that it is [adv] for	11
28	[that] it is [adv] for	11
29	and it is [adv] for	9
30	and it is [adv] for	9