SN4 ""

No	Pattern	Freq
1	[noun] which [verb] once	70
2	[noun sg] which [verb] once	50
3	[noun pl] which [verb] once	15
4	[noun prp] which [verb] once	5
5	which [pron] [verb] once	29
6	which [pers pn] [verb] once	27
7	which he [verb] once	10
8	which he [verb] once	10
9	which she [verb] once	8
10	which she [verb] once	8
11	which be [verb] once	7
12	which [be] [verb] once	7
13	which [noun] [verb] once	6
14	which [adv] [verb] once	5
15	which [adv] [verb] once	5
16	which [verb] [adv] once	7
17	which [verb] [adv] once	7
18	which [verb] only once	5
19	which [verb] only once	5
20	which [verb] once [be]	40
21	which [verb] once [been]	40
22	which [verb] once be	40
23	which [verb] once been	40
24	which [verb] once [verb]	37
25	which [verb] once [vb pp]	36
26	which [verb] once [art]	8
27	which [verb] once [art]	8
28	which [verb] once belonged	6
29	which [verb] once a	6
30	which [verb] once belong	6