SN4 ""

No	Pattern	Freq
1	[verb] once [vb pp]	749
2	have once [verb]	723
3	[vb past] once [verb]	706
4	had once [verb]	636
5	[vb base] once [verb]	47
6	[verb] once say	39
7	[v-ing] once [verb]	37
8	[verb] once said	35
9	[verb] once tell	34
10	[verb] once have	33
11	'd once [verb]	31
12	having once [verb]	31
13	do once [verb]	30
14	[verb] once told	30
15	did once [verb]	29
16	[verb] once [vb infin]	29
17	[verb] once [v-ing]	29
18	[verb] once had	26
19	[verb] once see	25
20	[verb] once belong	21
21	[verb] once seen	21
22	[verb] once belonged	21
23	[vb pp] once [verb]	21
24	[verb] once make	19
25	remember once [verb]	19
26	[verb] once made	18
27	remember once [verb]	17
28	[verb] once live	16
29	[verb] once lived	16
30	[verb] once [vb past]	15