SN4 ""

No	Pattern	Freq
1	it [be] the [adj] [noun] [noun]	494
2	it be the [adj] [noun] [noun]	494
3	it [be] the [adj] [noun sg] [noun]	421
4	it [be] the [adj] [noun] [noun sg]	335
5	it [is] the [adj] [noun] [noun]	273
6	it [be] the [adj] [noun] [noun]	268
7	it [was/were] the [adj] [noun] [noun]	217
8	it was the [adj] [noun] [noun]	215
9	it is the [adj] [noun] [noun]	140
10	it [be] the [num ord] [noun] [noun]	133
11	it 's the [adj] [noun] [noun]	133
12	it [be] the [adj] [noun] [noun prp]	111
13	it [be] the first [noun] [noun]	89
14	it [be] the first [noun] [noun]	89
15	it [be] the [adj] time [noun]	61
16	it [be] the [adj] time [noun]	60
17	it [be] the [adj -est] [noun] [noun]	58
18	it [be] the [adj] [noun prp] [noun]	56
19	it [be] the [adj] [noun] [noun pl]	42
20	it [be] the only [noun] [noun]	32
21	it [be] the only [noun] [noun]	32
22	it [be] the [det] [noun] [noun]	20
23	it [be] the good [noun] [noun]	18
24	it [be] the same [noun] [noun]	18
25	it [be] the best [noun] [noun]	18
26	it [be] the same [noun] [noun]	18
27	it [be] the second [noun] [noun]	17
28	it [be] the second [noun] [noun]	17
29	it [be] the [adj] [noun pl] [noun]	15
30	it [be] the old [noun] [noun]	13