SN4 ""

No	Pattern	Freq
1	[conj] it is [adv] [that] it	5
2	it is [adv] [adj] [that] it	68
3	it is [adv] [adj] [that] it	68
4	it is [adv] [vb pp] [that] it	43
5	it is [adv] [verb] [that] it	43
6	it is [adv] unlikely [that] it	7
7	it is [adv] unlikely [that] it	7
8	it is [adv] true [that] it	6
9	it is [adv] true [that] it	6
10	it is [adv] assumed [that] it	6
11	it is [adv] clear [that] it	6
12	it is [adv] argued [that] it	6
13	it is [adv] argue [that] it	6
14	it is [adv] clear [that] it	6
15	it is [adv] likely [that] it	6
16	it is [adv] likely [that] it	6
17	it is [adv] assume [that] it	6
18	it is [adv] surprising [that] it	5
19	it is [adv] know [that] it	5
20	it is [adv] thought [that] it	5
21	it is [adv] known [that] it	5
22	it is [adv] surprising [that] it	5
23	it is [adv] think [that] it	5
24	it is [adv] [that] it [verb]	10
25	it is [adv] [that] it [vb -s]	9
26	it is [adv] [that] it [modal v]	6
27	it is [adv] [that] it [vb mod]	6
28	it is [adv] [that] it should	5
29	it is [adv] [that] it should	5