SN4 ""

No	Pattern	Freq
1	[prep] once into	18
2	at once into	18
3	at once into	18
4	[prep] once into	18
5	once [adv] into	66
6	once [adv] into	66
7	once more into	43
8	once more into	43
9	once [verb] into	40
10	once [vb pp] into	25
11	once again into	21
12	once again into	21
13	once [vb past] into	11
14	once into [art]	19
15	once into [art]	19
16	once into the	12
17	once into the	12
18	once into a	7