SN4 ""

No	Pattern	Freq
1	once [adv]	6549
2	once again	3576
3	once again	3576
4	once more	2179
5	once more	2179
6	once [adv prt]	137
7	once before	128
8	once before	128
9	once only	71
10	once only	71
11	once so	58
12	once so	58
13	once out	40
14	once out	40
15	once too	39
16	once too	39
17	once there	34
18	once there	34
19	once back	25
20	once back	25
21	once already	22
22	once already	22
23	once in	21
24	once in	21
25	once even	20
26	once even	20
27	once very	18
28	once inside	18
29	once inside	18
30	once very	18