SN4 ""

No	Pattern	Freq
1	[noun] [noun sg] at the [noun sg]	3507
2	[noun] [noun sg] at the [noun sg]	3507
3	[noun sg] [noun sg] at the [noun sg]	2920
4	[noun] [noun sg] at the end	407
5	[noun prp] [noun sg] at the [noun sg]	375
6	[noun] [noun sg] at the time	259
7	[noun] [noun sg] at the university	146
8	[noun pl] [noun sg] at the [noun sg]	139
9	[noun] [noun sg] at the moment	120
10	[noun] [noun sg] at the back	111
11	[noun] [noun sg] at the beginning	98
12	[noun] [noun sg] at the top	94
13	[noun] [noun sg] at the age	86
14	[noun] [noun sg] at the weekend	63
15	[n mass] [noun sg] at the [noun sg]	60
16	[noun] [noun sg] at the centre	53
17	[noun] [noun sg] at the bottom	49
18	[noun] [noun sg] at the start	45
19	[noun] [noun sg] at the front	40
20	[noun] [noun sg] at the expense	39
21	[noun] room at the [noun sg]	37
22	research [noun sg] at the [noun sg]	37
23	research [noun sg] at the [noun sg]	37
24	[noun] centre at the [noun sg]	36
25	[noun] [noun sg] at the foot	36
26	[noun] system at the [noun sg]	36
27	[noun] [noun sg] at the rear	35
28	[noun] department at the [noun sg]	35
29	[noun] [noun sg] at the institute	34
30	[noun] unit at the [noun sg]	34