SN4 ""

No	Pattern	Freq
1	[verb] [adv] at the time [prep]	42
2	[noun] [adv] at the time [prep]	22
3	[vb pp] [adv] at the time [prep]	20
4	[be] [adv] at the time [prep]	15
5	be [adv] at the time [prep]	15
6	[adv] [adv] at the time [prep]	12
7	[vb past] [adv] at the time [prep]	10
8	[noun pl] [adv] at the time [prep]	9
9	[coord] [adv] at the time [prep]	9
10	[conj] [adv] at the time [prep]	9
11	[noun sg] [adv] at the time [prep]	9
12	[adj] [adv] at the time [prep]	9
13	[adv] [adv] at the time [prep]	8
14	[was/were] [adv] at the time [prep]	8
15	[v-ing] [adv] at the time [prep]	7
16	was [adv] at the time [prep]	7
17	[been] [adv] at the time [prep]	5
18	been [adv] at the time [prep]	5
19	[adj] [adv] at the time [prep]	5
20	[adv] [verb] at the time [prep]	70
21	[adv] [adj] at the time [prep]	66
22	[adv] [vb pp] at the time [prep]	51
23	[adv] [adj] at the time [prep]	47
24	[adv] [num] at the time [prep]	17
25	[adv] [adv] at the time [prep]	12
26	[adv] [adv] at the time [prep]	11
27	[adv] [conj] at the time [prep]	9
28	[adv] [vb infin] at the time [prep]	7
29	[adv] know at the time [prep]	5
30	[adv] [v-ing] at the time [prep]	5