SN4 ""

No	Pattern	Freq
1	[noun] [subord] it [be] and	25
2	[noun sg] [subord] it [be] and	22
3	[adj] [subord] it [be] and	18
4	[adv] [subord] it [be] and	11
5	[pron] [subord] it [be] and	9
6	[pers pn] [subord] it [be] and	8
7	[adj] [subord] it [be] and	7
8	[adj -er] [subord] it [be] and	7
9	[verb] [subord] it [be] and	6
10	[adv] [subord] it [be] and	6
11	[subord] it [modal v] [be] and	11
12	[subord] it [vb mod] [be] and	11
13	[subord] it [adv] [be] and	10
14	[subord] it [adv] [be] and	10
15	[subord] it really [be] and	6
16	[subord] it really [be] and	6
17	[subord] it should [be] and	5
18	[subord] it should [be] and	5
19	[subord] it [verb] [be] and	5
20	[subord] it [be] [adj] and	309
21	[subord] it [be] [adj] and	291
22	[subord] it [be] [verb] and	142
23	[subord] it [be] [vb pp] and	113
24	[subord] it [be] [noun] and	53
25	[subord] it [be] [adv] and	52
26	[subord] it [be] [adv] and	36
27	[subord] it [be] [noun sg] and	32
28	[subord] it [be] [v-ing] and	25
29	[subord] it [be] [adv prt] and	15
30	[subord] it [be] [noun prp] and	14