SN4 ""

No	Pattern	Freq
1	[conj] it is [vb pp] that [noun]	120
2	[subord] it is [vb pp] that [noun]	67
3	[coord] it is [vb pp] that [noun]	48
4	and it is [vb pp] that [noun]	31
5	and it is [vb pp] that [noun]	31
6	[adv] it is [vb pp] that [noun]	24
7	[noun] it is [vb pp] that [noun]	24
8	if it is [vb pp] that [noun]	22
9	if it is [vb pp] that [noun]	22
10	[adv] it is [vb pp] that [noun]	16
11	but it is [vb pp] that [noun]	15
12	but it is [vb pp] that [noun]	15
13	[noun sg] it is [vb pp] that [noun]	13
14	when it is [vb pp] that [noun]	12
15	when it is [vb pp] that [noun]	12
16	[pron] it is [vb pp] that [noun]	9
17	which it is [vb pp] that [noun]	8
18	[Wh det] it is [vb pp] that [noun]	8
19	[Wh adv] it is [vb pp] that [noun]	8
20	which it is [vb pp] that [noun]	8
21	where it is [vb pp] that [noun]	7
22	although it is [vb pp] that [noun]	7
23	[verb] it is [vb pp] that [noun]	7
24	where it is [vb pp] that [noun]	7
25	although it is [vb pp] that [noun]	7
26	[adj] it is [vb pp] that [noun]	6
27	since it is [vb pp] that [noun]	5
28	that it is [vb pp] that [noun]	5
29	then it is [vb pp] that [noun]	5
30	that it is [vb pp] that [noun]	5