SN4 ""

No	Pattern	Freq
1	[prep] once [prep] a	55
2	[prep] once [prep] a	55
3	[prep] once [verb] a	24
4	[prep] once in a	12
5	[prep] once in a	12
6	[prep] once with a	8
7	[prep] once with a	8
8	[prep] once by a	7
9	[prep] once by a	7
10	[prep] once to a	6
11	[prep] once [vb past] a	6
12	[prep] once to a	6
13	[prep] once [v-ing] a	5
14	[prep] once [vb pp] a	5
15	be [prep] once a	22
16	[be] [prep] once a	22
17	[noun] [prep] once a	14
18	[verb] [prep] once a	14
19	[adj] [prep] once a	13
20	[is] [prep] once a	12
21	is [prep] once a	12
22	[noun sg] [prep] once a	11
23	[adv] [prep] once a	11
24	[det] [prep] once a	10
25	all [prep] once a	10
26	all [prep] once a	10
27	[adv] [prep] once a	8
28	almost [prep] once a	6
29	almost [prep] once a	6
30	[was/were] [prep] once a	6