SN4 ""

No	Pattern	Freq
1	it is [adv] [vb pp] that [art]	404
2	it is [adv] [vb pp] that [art]	404
3	it is [adv] [vb pp] that the	331
4	it is [adv] [vb pp] that the	331
5	it is [adv] [vb pp] that [adj]	240
6	it is [adv] [vb pp] that [noun]	203
7	it is [adv] [vb pp] that [pron]	149
8	it is [adv] [vb pp] that [det]	133
9	it is [adv] [vb pp] that [pers pn]	98
10	it is [adv] [vb pp] that [adj]	93
11	it is [adv] [vb pp] that [noun pl]	80
12	it is [adv] [vb pp] that [noun sg]	68
13	it is [adv] [vb pp] that a	68
14	it is [adv] [vb pp] that a	59
15	it is [adv] [vb pp] that [prep]	53
16	it is [adv] [vb pp] that [prep]	53
17	it is [adv] [vb pp] that [noun prp]	46
18	it is [adv] [vb pp] that it	43
19	it is [adv] [vb pp] that it	43
20	it is [adv] [vb pp] that [subord]	38
21	it is [adv] [vb pp] that [conj]	38
22	it is [adv] [vb pp] that this	34
23	it is [adv] [vb pp] that this	34
24	it is [adv] [vb pp] that there	31
25	it is [adv] [vb pp] that there	31
26	it is [adv] [vb pp] that [ex0]	31
27	it is [adv] [vb pp] that in	30
28	it is [adv] [vb pp] that in	30
29	it is [adv] [vb pp] that they	23
30	it is [adv] [vb pp] that [adv]	23