SN4 ""

No	Pattern	Freq
1	[subord] at the [adj] [noun]	552
2	[subord] at the [adj] [noun sg]	539
3	[subord] at the [adj] time	431
4	[subord] at the [adj] time	431
5	[subord] at the same [noun]	424
6	[subord] at the [det] [noun]	424
7	[subord] at the same [noun]	424
8	while at the [adj] [noun]	338
9	[subord] at the [adj] [noun]	100
10	whilst at the [adj] [noun]	63
11	than at the [adj] [noun]	35
12	[subord] at the [adj] end	30
13	[subord] at the [adj] end	30
14	[subord] at the other [noun]	25
15	[subord] at the other [noun]	25
16	as at the [adj] [noun]	19
17	although at the [adj] [noun]	19
18	[subord] at the [num ord] [noun]	19
19	if at the [adj] [noun]	17
20	though at the [adj] [noun]	16
21	[subord] at the [adj] level	13
22	[subord] at the [adj] [noun pl]	11
23	[subord] at the [adj] level	11
24	when at the [adj] [noun]	11
25	[subord] at the present [noun]	10
26	[subord] at the present [noun]	10
27	for at the [adj] [noun]	8
28	[subord] at the very [noun]	7
29	[subord] at the very [noun]	7
30	[subord] at the [adj] stage	7