SN4 ""

No	Pattern	Freq
1	it be [verb] on the [noun]	205
2	it [be] [verb] on the [noun sg]	167
3	it [be] [vb pp] on the [noun]	157
4	it [is] [verb] on the [noun]	109
5	it was [verb] on the [noun]	93
6	it [was/were] [verb] on the [noun]	93
7	it is [verb] on the [noun]	77
8	it [be] based on the [noun]	51
9	it [be] base on the [noun]	51
10	it [be] [v-ing] on the [noun]	44
11	it 's [verb] on the [noun]	32
12	it [be] [verb] on the [noun pl]	27
13	it [be] [verb] on the [noun prp]	8
14	it [be] [verb] on the ground	8
15	it [be] [verb] on the assumption	8
16	it [be] [verb] on the assumption	8
17	it [be] build on the [noun]	6
18	it [be] lie on the [noun]	5
19	it [be] [verb] on the table	5
20	it [be] built on the [noun]	5
21	it [be] written on the [noun]	5
22	it [be] lying on the [noun]	5
23	it [be] going on the [noun]	5
24	it [be] [verb] on the table	5
25	it [be] [verb] on the basis	5
26	it [be] go on the [noun]	5
27	it [be] [verb] on the basis	5
28	it [be] [verb] on the ground	5
29	it [be] hold on the [noun]	5
30	it [be] held on the [noun]	5