SN4 ""

No	Pattern	Freq
1	[prep] [noun] [noun pl] at the [noun]	260
2	[prep] [noun sg] [noun pl] at the [noun]	216
3	[prep] [noun] [noun pl] at the [noun sg]	202
4	of [noun] [noun pl] at the [noun]	107
5	[prep] [noun] [noun pl] at the [noun prp]	41
6	[prep] [noun] [noun pl] at the end	23
7	by [noun] [noun pl] at the [noun]	22
8	[prep] [noun] [noun pl] at the time	22
9	[prep] [noun] [noun pl] at the time	22
10	[prep] [noun prp] [noun pl] at the [noun]	22
11	on [noun] [noun pl] at the [noun]	21
12	[prep] [noun] [noun pl] at the end	21
13	in [noun] [noun pl] at the [noun]	20
14	with [noun] [noun pl] at the [noun]	17
15	to [noun] [noun pl] at the [noun]	17
16	for [noun] [noun pl] at the [noun]	17
17	[prep] [noun] [noun pl] at the [noun pl]	16
18	[prep] [noun pl] [noun pl] at the [noun]	15
19	[prep] [noun] services at the [noun]	11
20	[prep] [noun] [noun pl] at the university	11
21	[prep] [noun] [noun pl] at the university	11
22	from [noun] [noun pl] at the [noun]	9
23	[prep] [noun] [noun pl] at the beginning	8
24	[prep] [noun] [noun pl] at the beginning	8
25	[prep] [noun] [noun pl] at the moment	8
26	[prep] [noun] [noun pl] at the moment	8
27	[prep] [noun] studies at the [noun]	6
28	[prep] [noun] [noun pl] at the expense	6
29	[prep] [noun] [noun pl] at the expense	6
30	[prep] [n mass] [noun pl] at the [noun]	5