SN4 ""

No	Pattern	Freq
1	[conj] it is [adj] that [art]	447
2	[coord] it is [adj] that [art]	215
3	[subord] it is [adj] that [art]	192
4	[noun] it is [adj] that [art]	148
5	and it is [adj] that [art]	130
6	and it is [adj] that [art]	130
7	[noun sg] it is [adj] that [art]	104
8	[adv] it is [adj] that [art]	99
9	[adv] it is [adj] that [art]	83
10	but it is [adj] that [art]	83
11	but it is [adj] that [art]	83
12	[verb] it is [adj] that [art]	51
13	[noun pl] it is [adj] that [art]	41
14	[that] it is [adj] that [art]	40
15	that it is [adj] that [art]	40
16	that it is [adj] that [art]	40
17	although it is [adj] that [art]	30
18	although it is [adj] that [art]	30
19	while it is [adj] that [art]	29
20	while it is [adj] that [art]	29
21	if it is [adj] that [art]	26
22	if it is [adj] that [art]	26
23	[adj] it is [adj] that [art]	24
24	[vb base] it is [adj] that [art]	18
25	so it is [adj] that [art]	17
26	so it is [adj] that [art]	17
27	then it is [adj] that [art]	17
28	then it is [adj] that [art]	17
29	where it is [adj] that [art]	16
30	where it is [adj] that [art]	16