SN4 ""

No	Pattern	Freq
1	been [vb pp] on the [noun sg]	656
2	been [vb pp] on the [noun pl]	107
3	been [vb pp] on the basis	50
4	been [vb pp] on the basis	50
5	been [vb pp] on the [noun prp]	44
6	been based on the [noun]	43
7	been placed on the [noun]	41
8	been [vb pp] on the ground	41
9	been put on the [noun]	35
10	been done on the [noun]	29
11	been [vb pp] on the grounds	28
12	been made on the [noun]	28
13	been written on the [noun]	21
14	been spent on the [noun]	19
15	been [vb pp] on the subject	19
16	been [vb pp] on the subject	19
17	been found on the [noun]	17
18	been focused on the [noun]	16
19	been reached on the [noun]	14
20	been [vb pp] on the ground	13
21	been [vb pp] on the market	12
22	been [vb pp] on the site	12
23	been [vb pp] on the market	12
24	been left on the [noun]	12
25	been built on the [noun]	12
26	been published on the [noun]	11
27	been [vb pp] on the site	11
28	been [vb pp] on the assumption	10
29	been [vb pp] on the spot	10
30	been entered on the [noun]	10