SN4 ""

No	Pattern	Freq
31	but [noun] at the [noun]	20
32	[conj] staff at the [noun]	20
33	[conj] [noun] at the beginning	18
34	[conj] [noun] at the beginning	18
35	than [noun] at the [noun]	17
36	[conj] [noun] at the centre	17
37	than [noun] at the [noun]	17
38	[conj] [noun] at the back	17
39	[conj] [noun] at the back	17
40	[conj] [noun] at the centre	16
41	[conj] colleague at the [noun]	14
42	[conj] colleagues at the [noun]	14
43	[conj] [noun] at the level	13
44	[conj] [noun] at the bottom	13
45	[conj] [noun] at the level	13
46	[conj] [noun] at the bottom	13
47	[conj] other at the [noun]	11
48	[conj] others at the [noun]	11
49	[conj] [noun] at the expense	10
50	[conj] [noun] at the expense	10
51	[conj] [noun] at the base	10
52	[conj] [noun] at the start	10
53	[conj] [noun] at the start	10
54	[conj] [noun] at the base	10
55	[conj] [noun] at the weekend	9
56	[conj] [noun] at the heart	9
57	[conj] [noun] at the heart	9
58	[conj] [noun] at the weekend	9
59	[conj] [noun] at the hospital	8
60	& [noun] at the [noun]	8