SN4 ""

No	Pattern	Freq
1	[conj] it [vb past] to be	308
2	[subord] it [vb past] to be	121
3	[coord] it [vb past] to be	116
4	[adv] it [vb past] to be	91
5	[noun] it [vb past] to be	85
6	that it [vb past] to be	71
7	that it [vb past] to be	71
8	[that] it [vb past] to be	71
9	[noun sg] it [vb past] to be	61
10	and it [vb past] to be	61
11	and it [vb past] to be	61
12	but it [vb past] to be	55
13	but it [vb past] to be	55
14	[adv] it [vb past] to be	50
15	[verb] it [vb past] to be	46
16	[pron] it [vb past] to be	44
17	[Wh adv] it [vb past] to be	39
18	as it [vb past] to be	37
19	as it [vb past] to be	37
20	[Wh det] it [vb past] to be	35
21	[vb past] it [vb past] to be	29
22	what it [vb past] to be	27
23	what it [vb past] to be	27
24	how it [vb past] to be	25
25	how it [vb past] to be	25
26	because it [vb past] to be	17
27	[adj] it [vb past] to be	17
28	because it [vb past] to be	17
29	[noun pl] it [vb past] to be	14
30	[prep] it [vb past] to be	14