SN4 ""

No	Pattern	Freq
1	it is [verb] that there	144
2	it is [verb] that there	144
3	it is [vb pp] that there	141
4	it is assumed that there	13
5	it is assume that there	13
6	it is know that there	12
7	it is estimate that there	11
8	it is known that there	11
9	it is estimated that there	11
10	it is accept that there	9
11	it is suggested that there	9
12	it is accepted that there	9
13	it is suggest that there	9
14	it is say that there	9
15	it is said that there	8
16	it is thought that there	7
17	it is hope that there	7
18	it is think that there	7
19	it is hoped that there	7
20	it is submit that there	5
21	it is recognised that there	5
22	it is submitted that there	5
23	it is recognise that there	5