SN4 ""

No	Pattern	Freq
1	[verb] at the time [prep]	491
2	[verb] at the time [prep]	491
3	[verb] at the time of	402
4	[verb] at the time of	402
5	[vb pp] at the time [prep]	309
6	[v-ing] at the time [prep]	62
7	[vb past] at the time [prep]	61
8	make at the time [prep]	33
9	made at the time [prep]	32
10	[verb] at the time by	23
11	[verb] at the time by	23
12	exist at the time [prep]	21
13	know at the time [prep]	16
14	[to-vb] at the time [prep]	16
15	[verb] at the time as	16
16	[verb] at the time as	16
17	[vb base] at the time [prep]	15
18	[vb -s] at the time [prep]	14
19	[vb infin] at the time [prep]	14
20	[verb] at the time to	12
21	[verb] at the time to	12
22	give at the time [prep]	11
23	known at the time [prep]	10
24	write at the time [prep]	10
25	given at the time [prep]	10
26	occur at the time [prep]	10
27	do at the time [prep]	9
28	[verb] at the time in	8
29	[verb] at the time in	8
30	think at the time [prep]	7