SN4 ""

No	Pattern	Freq
1	it 's [adj] that [noun]	144
2	it 's [adj] that [noun]	141
3	it 's [adv] that [noun]	42
4	it 's [verb] that [noun]	34
5	it 's [adv] that [noun]	33
6	it 's [vb pp] that [noun]	28
7	it 's just that [noun]	26
8	it 's just that [noun]	26
9	it 's important that [noun]	16
10	it 's important that [noun]	16
11	it 's clear that [noun]	15
12	it 's clear that [noun]	15
13	it 's true that [noun]	11
14	it 's obvious that [noun]	11
15	it 's true that [noun]	11
16	it 's obvious that [noun]	11
17	it 's possible that [noun]	10
18	it 's possible that [noun]	10
19	it 's not that [noun]	9
20	it 's not that [noun]	9
21	it 's [not/n't] that [noun]	9
22	it 's vital that [noun]	8
23	it 's [noun] that [noun]	8
24	it 's vital that [noun]	8
25	it 's [pron] that [noun]	7
26	it 's hope that [noun]	6
27	it 's unlikely that [noun]	6
28	it 's something that [noun]	6
29	it 's [indef pn] that [noun]	6
30	it 's [v-ing] that [noun]	6