SN4 ""

No	Pattern	Freq
1	it [be] [adj] that [pron] have	278
2	it [be] [adj] that [pron] have	271
3	it [be] [verb] that [pron] have	153
4	it [be] [vb pp] that [pron] have	149
5	it [be] [adv] that [pron] have	139
6	it [be] [adv] that [pron] have	104
7	it [be] just that [pron] have	80
8	it [be] just that [pron] have	80
9	it [be] clear that [pron] have	37
10	it [be] clear that [pron] have	37
11	it [be] true that [pron] have	36
12	it [be] true that [pron] have	36
13	it [be] not that [pron] have	35
14	it [be] [not/n't] that [pron] have	35
15	it [be] obvious that [pron] have	29
16	it [be] obvious that [pron] have	29
17	it [be] not that [pron] have	23
18	it [be] possible that [pron] have	21
19	it [be] possible that [pron] have	21
20	it [be] [indef pn] that [pron] have	19
21	it [be] [pron] that [pron] have	19
22	it [be] something that [pron] have	15
23	it [be] something that [pron] have	15
24	it [be] say that [pron] have	12
25	it [be] held that [pron] have	12
26	it [be] hold that [pron] have	12
27	it [be] n't that [pron] have	12
28	it [be] said that [pron] have	11
29	it [be] suggested that [pron] have	11
30	it [be] suggest that [pron] have	11