SN4 ""

No	Pattern	Freq
1	[adv] [adj] at the time [prep]	66
2	[adv] [adj] at the time [prep]	66
3	[adv] [adj] at the time of	59
4	[adv] [adj] at the time of	59
5	[adv] [adj] at the time [conj]	28
6	[adv] [adj] at the time [coord]	15
7	[adv] [adj] at the time and	13
8	[adv] [adj] at the time and	13
9	[adv] [adj] at the time [pron]	9
10	[adv] [adj] at the time [verb]	8
11	[adv] [adj] at the time [pers pn]	8
12	[adv] [adj] at the time [subord]	7
13	[adv] [adj] at the time that	6
14	[adv] [adj] at the time that	6
15	[adv] [adj] at the time [that]	6
16	[adv] [adj] at the time [to-vb]	6
17	[adv] [adj] at the time as	5
18	[adv] [adj] at the time as	5
19	be [adv] [adj] at the time	134
20	[be] [adv] [adj] at the time	134
21	[was/were] [adv] [adj] at the time	111
22	was [adv] [adj] at the time	86
23	[verb] [adv] [adj] at the time	28
24	were [adv] [adj] at the time	25
25	[adv] [adv] [adj] at the time	21
26	[adv] [adv] [adj] at the time	16
27	[vb past] [adv] [adj] at the time	12
28	seem [adv] [adj] at the time	11
29	[conj] [adv] [adj] at the time	10
30	[noun] [adv] [adj] at the time	9