SN4 ""

No	Pattern	Freq
1	once [prep]	2142
2	once [prep]	2142
3	once in	826
4	once in	826
5	once upon	166
6	once upon	166
7	once on	151
8	once on	151
9	once to	117
10	once to	117
11	once with	108
12	once with	108
13	once at	106
14	once at	106
15	once for	105
16	once for	105
17	once by	68
18	once by	68
19	once during	58
20	once during	58
21	once inside	56
22	once inside	56
23	once from	36
24	once from	36
25	once of	33
26	once of	33
27	once per	30
28	once per	30
29	once as	29
30	once as	29