SN4 ""

No	Pattern	Freq
1	[noun] at the [noun sg] [subord]	281
2	[noun sg] at the [noun] [subord]	217
3	[noun pl] at the [noun] [subord]	77
4	[noun] at the [noun] as	73
5	[noun] at the [noun] because	52
6	[noun] at the [noun] when	51
7	[noun] at the moment [subord]	46
8	[noun] at the moment [subord]	46
9	[noun] at the [noun] if	29
10	[noun] at the [noun pl] [subord]	24
11	[noun prp] at the [noun] [subord]	23
12	[noun] at the end [subord]	22
13	[noun] at the end [subord]	22
14	[noun] at the [noun] so	21
15	[noun] at the [noun prp] [subord]	18
16	look at the [noun] [subord]	18
17	[noun] at the [noun] before	18
18	look at the [noun] [subord]	18
19	[noun] at the [noun] while	17
20	[noun] at the weekend [subord]	16
21	[noun] at the [noun] than	16
22	[noun] at the weekend [subord]	14
23	[noun] at the time [subord]	12
24	[noun] at the time [subord]	12
25	[noun] at the [noun] since	10
26	[noun] at the [noun] until	9
27	[noun] at the [noun] though	8
28	[noun] at the top [subord]	8
29	[noun] at the top [subord]	8
30	time at the [noun] [subord]	8