SN4 ""

No	Pattern	Freq
31	at the door [conj]	128
32	at the back [conj]	124
33	at the back [conj]	124
34	at the end [conj]	120
35	at the end [conj]	116
36	at the weekend [conj]	107
37	at the weekend [conj]	93
38	at the front [conj]	91
39	at the front [conj]	91
40	at the bottom [conj]	88
41	at the bottom [conj]	88
42	at the [noun] if	84
43	at the [noun] if	84
44	at the outset [conj]	83
45	at the outset [conj]	83
46	at the table [conj]	75
47	at the table [conj]	74
48	at the start [conj]	71
49	at the start [conj]	71
50	at the thought [conj]	59
51	at the centre [conj]	59
52	at the thought [conj]	59
53	at the centre [conj]	59
54	at the [noun] while	57
55	at the [noun] while	57
56	at the [noun] than	52
57	at the [noun] than	52
58	at the side [conj]	47
59	at the [noun] until	46
60	at the [noun] until	46