SN4 ""

No	Pattern	Freq
1	it is [adv] [adv] for	61
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 not [adv] for	32
7	it is [adv] [adv] for	23
8	it is [verb] [adv] for	22
9	it is [vb pp] [adv] for	20
10	it is n't [adv] for	6
11	it is good [adv] for	5
12	it is possible [adv] for	5
13	it is too [adv] for	5
14	it is available [adv] for	5
15	it is used [adv] for	5
16	it is possible [adv] for	5
17	it is too [adv] for	5
18	it is available [adv] for	5
19	it is use [adv] for	5
20	it is all [adv] for	5
21	it is all [adv] for	5
22	[conj] it is [adv] for	18
23	[coord] it is [adv] for	10
24	and it is [adv] for	7
25	and it is [adv] for	7
26	[subord] it is [adv] for	5
27	[noun] it is [adv] for	5
28	it is [adv] [adj] for	890
29	it is [adv] [adj] for	840
30	it is [adv] [verb] for	127