SN4 ""

No	Pattern	Freq
1	[subord] it [be] [adj] and	291
2	[subord] it be [adj] and	291
3	[subord] it [is] [adj] and	182
4	[subord] it is [adj] and	108
5	[subord] it [was/were] [adj] and	108
6	[subord] it was [adj] and	98
7	[subord] it 's [adj] and	74
8	because it [be] [adj] and	67
9	if it [be] [adj] and	58
10	when it [be] [adj] and	44
11	as it [be] [adj] and	28
12	where it [be] [adj] and	13
13	until it [be] [adj] and	13
14	although it [be] [adj] and	12
15	[subord] it [be] dark and	11
16	[subord] it were [adj] and	10
17	though it [be] [adj] and	9
18	[subord] it [be] nice and	9
19	whether it [be] [adj] and	8
20	[subord] it [be] hot and	8
21	[subord] it [be] small and	7
22	cos it [be] [adj] and	7
23	since it [be] [adj] and	6
24	before it [be] [adj] and	6
25	[subord] it [be] cold and	6
26	unless it [be] [adj] and	5
27	[subord] it [be] new and	5
28	[subord] it [be] dry and	5