SN4 ""

No	Pattern	Freq
1	on [noun sg] at the [noun sg]	262
2	on [noun sg] at the [noun prp]	95
3	on show at the [noun]	55
4	on display at the [noun]	42
5	on [noun sg] at the time	33
6	on [noun sg] at the time	33
7	on sale at the [noun]	29
8	on duty at the [noun]	27
9	on arrival at the [noun]	25
10	on [noun sg] at the moment	22
11	on [noun sg] at the moment	22
12	on holiday at the [noun]	16
13	on stage at the [noun]	15
14	on [noun sg] at the end	12
15	on offer at the [noun]	12
16	on [noun sg] at the end	12
17	on [noun sg] at the [noun pl]	11
18	on view at the [noun]	10
19	on [noun sg] at the museum	8
20	on hand at the [noun]	8
21	on [noun sg] at the museum	8
22	on [noun sg] at the expense	7
23	on strike at the [noun]	7
24	on [noun sg] at the expense	7
25	on [noun sg] at the city	6
26	on [noun sg] at the town	6
27	on [noun sg] at the city	6
28	on [noun sg] at the town	6
29	on land at the [noun]	6
30	on guard at the [noun]	5