SN4 ""

No	Pattern	Freq
1	it [be] [adj] that [det] [noun]	584
2	it be [adj] that [det] [noun]	584
3	it [is] [adj] that [det] [noun]	530
4	it is [adj] that [det] [noun]	506
5	it [verb] [adj] that [det] [noun]	84
6	it [vb -s] [adj] that [det] [noun]	63
7	it seem [adj] that [det] [noun]	62
8	it seems [adj] that [det] [noun]	55
9	it [was/were] [adj] that [det] [noun]	54
10	it was [adj] that [det] [noun]	54
11	it [adv] [adj] that [det] [noun]	24
12	it 's [adj] that [det] [noun]	24
13	it [adv] [adj] that [det] [noun]	23
14	it [vb past] [adj] that [det] [noun]	20
15	it become [adj] that [det] [noun]	19
16	it became [adj] that [det] [noun]	13
17	it seemed [adj] that [det] [noun]	7
18	it becomes [adj] that [det] [noun]	5
19	[verb] it [adj] that [det] [noun]	42
20	make it [adj] that [det] [noun]	32
21	[vb past] it [adj] that [det] [noun]	11
22	made it [adj] that [det] [noun]	9
23	[vb -s] it [adj] that [det] [noun]	9
24	makes it [adj] that [det] [noun]	7
25	[vb pp] it [adj] that [det] [noun]	6
26	[be] it [adj] that [det] [noun]	5
27	is it [adj] that [det] [noun]	5
28	think it [adj] that [det] [noun]	5
29	be it [adj] that [det] [noun]	5
30	made it [adj] that [det] [noun]	5