SN4 ""

No	Pattern	Freq
1	it be [adv] for [noun]	149
2	it [be] [adv] for [noun]	149
3	it [was/were] [adv] for [noun]	75
4	it [is] [adv] for [noun]	74
5	it was [adv] for [noun]	61
6	it 's [adv] for [noun]	49
7	it [verb] [adv] for [noun]	40
8	it is [adv] for [noun]	25
9	it [adv] [adv] for [noun]	22
10	it [vb -s] [adv] for [noun]	19
11	it [vb past] [adv] for [noun]	15
12	it [adv] [adv] for [noun]	14
13	it were [adv] for [noun]	14
14	it come [adv] for [noun]	9
15	it [adv prt] [adv] for [noun]	7
16	[verb] it [adv] for [noun]	142
17	[vb past] it [adv] for [noun]	35
18	[vb base] it [adv] for [noun]	32
19	[v-ing] it [adv] for [noun]	29
20	be it [adv] for [noun]	17
21	put it [adv] for [noun]	17
22	[be] it [adv] for [noun]	17
23	[to-vb] it [adv] for [noun]	16
24	[was/were] it [adv] for [noun]	14
25	were it [adv] for [noun]	13
26	make it [adv] for [noun]	12
27	[vb pp] it [adv] for [noun]	11
28	[vb infin] it [adv] for [noun]	11
29	put it [adv] for [noun]	9
30	do it [adv] for [noun]	9