SN4 ""

No	Pattern	Freq
1	[noun] at the [num ord] [prep]	25
2	[noun sg] at the [num ord] [prep]	15
3	[verb] at the [num ord] [prep]	14
4	[noun pl] at the [num ord] [prep]	7
5	[adj] at the [num ord] [prep]	5
6	[num] at the [num ord] [prep]	5
7	[v-ing] at the [num ord] [prep]	5
8	at the [adj] [num ord] [prep]	8
9	at the [noun] [num ord] [prep]	8
10	at the [noun sg] [num ord] [prep]	7
11	at the [num ord] [noun] [prep]	562
12	at the [num ord] [noun sg] [prep]	544
13	at the [num ord] meeting [prep]	73
14	at the [num ord] meeting [prep]	73
15	at the [num ord] sign [prep]	45
16	at the [num ord] sign [prep]	42
17	at the [num ord] congress [prep]	31
18	at the [num ord] congress [prep]	31
19	at the [num ord] session [prep]	30
20	at the [num ord] session [prep]	30
21	at the [num ord] moment [prep]	24
22	at the [num ord] moment [prep]	24
23	at the [num ord] minute [prep]	22
24	at the [num ord] minute [prep]	21
25	at the [num ord] stage [prep]	19
26	at the [num ord] stage [prep]	18
27	at the [num ord] [noun pl] [prep]	16
28	at the [num ord] round [prep]	15
29	at the [num ord] round [prep]	15
30	at the [num ord] level [prep]	14