SN4 ""

No	Pattern	Freq
1	at the [det] [noun] [conj]	1079
2	at the [det] [noun] [conj]	1079
3	at the same [noun] [conj]	1072
4	at the [det] [noun sg] [conj]	1061
5	at the [det] time [conj]	830
6	at the [det] time [conj]	829
7	at the [det] [noun] [subord]	825
8	at the [det] [noun] as	785
9	at the [det] [noun] as	785
10	at the [det] [noun] [coord]	171
11	at the [det] [noun] and	127
12	at the [det] [noun] and	127
13	at the [det] [noun] [that]	83
14	at the [det] [noun] that	83
15	at the [det] [noun] that	83
16	at the [det] rate [conj]	47
17	at the [det] rate [conj]	44
18	at the [det] level [conj]	33
19	at the [det] level [conj]	31
20	at the [det] [noun] or	31
21	at the [det] [noun] or	31
22	at the [det] speed [conj]	20
23	at the [det] speed [conj]	20
24	at the [det] [noun pl] [conj]	17
25	at the [det] moment [conj]	17
26	at the [det] moment [conj]	17
27	at the [det] [noun] if	13
28	at the [det] [noun] but	13
29	at the [det] [noun] but	13
30	at the [det] [noun] if	13