SN4 ""

No	Pattern	Freq
1	[verb] once [pron]	253
2	[verb] once [pers pn]	231
3	[vb base] once [pron]	80
4	[verb] once you	67
5	[verb] once you	67
6	[vb pp] once [pron]	56
7	[verb] once they	50
8	[verb] once they	50
9	[vb infin] once [pron]	48
10	[to-vb] once [pron]	39
11	[verb] once it	32
12	[verb] once it	32
13	[verb] once he	25
14	[verb] once we	24
15	[verb] once he	24
16	[verb] once we	24
17	[verb] once i	23
18	[verb] once i	22
19	mean once [pron]	20
20	mean once [pron]	19
21	think once [pron]	18
22	think once [pron]	16
23	[verb] once [pos pn]	14
24	do once [pron]	13
25	know once [pron]	12
26	[v-ing] once [pron]	11
27	know once [pron]	10
28	remember once [pron]	10
29	[verb] once she	10
30	[vb -s] once [pron]	10