SN4 ""

No	Pattern	Freq
1	[Wh pn] at the [noun]	65
2	[Wh pn] at the [noun sg]	64
3	[Wh pn] at the time	29
4	[Wh pn] at the time	29
5	[Wh pn] at the [adj]	14
6	[Wh pn] at the moment	7
7	[Wh pn] at the moment	7
8	[Wh pn] at the end	7
9	[Wh pn] at the end	7
10	[Wh pn] at the start	6
11	[Wh pn] at the age	6
12	[Wh pn] at the start	6
13	[Wh pn] at the [det]	6
14	[Wh pn] at the age	6
15	[Wh pn] at the same	5
16	[Wh pn] at the same	5
17	[noun] [Wh pn] at the	28
18	[noun sg] [Wh pn] at the	11
19	[noun pl] [Wh pn] at the	11
20	[prep] [Wh pn] at the	5
21	[prep] [Wh pn] at the	5
22	[Wh pn] [verb] at the	302
23	[Wh pn] [vb past] at the	200
24	[Wh pn] [be] at the	111
25	[Wh pn] be at the	111
26	[Wh pn] [was/were] at the	69
27	[Wh pn] [vb -s] at the	57
28	[Wh pn] work at the	48
29	[Wh pn] was at the	47
30	[Wh pn] [vb base] at the	45