SN4 ""

No	Pattern	Freq
1	it is [adv] for [art]	29
2	it is [adv] for [art]	29
3	it is [adv] for the	25
4	it is [adv] for the	25
5	it is [adv] for [adj]	24
6	it is [adv] for [det]	17
7	it is [adv] for [pron]	13
8	it is [adv] for [pers pn]	10
9	it is [adv] for [noun]	9
10	it is [adv] for this	8
11	it is [adv] for this	8
12	it is [adv] for [noun pl]	7
13	it is [adv] for [adj]	6
14	[conj] it is [adv] for	18
15	[coord] it is [adv] for	10
16	and it is [adv] for	7
17	and it is [adv] for	7
18	[subord] it is [adv] for	5
19	[noun] it is [adv] for	5
20	it is [adv] [adv] for	61
21	it is [adj] [adv] for	57
22	it is [adj] [adv] for	54
23	it is [not/n't] [adv] for	38
24	it is not [adv] for	38
25	it is not [adv] for	32
26	it is [adv] [adv] for	23
27	it is [verb] [adv] for	22
28	it is [vb pp] [adv] for	20
29	it is n't [adv] for	6
30	it is good [adv] for	5