SN4 ""

No	Pattern	Freq
1	know at the [adj] time	7
2	know at the [det] time	6
3	know at the same time	6
4	know at the same time	6
5	[adv] know at the time	24
6	[not/n't] know at the time	19
7	not know at the time	19
8	[pron] know at the time	15
9	[pers pn] know at the time	14
10	n't know at the time	12
11	be know at the time	8
12	[be] know at the time	8
13	[noun] know at the time	7
14	not know at the time	7
15	[adv] know at the time	5
16	[noun pl] know at the time	5
17	i know at the time	5
18	i know at the time	5
19	know [pron] at the time	16
20	know [pers pn] at the time	16
21	know it at the time	15
22	know it at the time	15
23	know [det] at the time	5
24	know [adj] at the time	5
25	know at the time [prep]	16
26	know at the time [prep]	16
27	know at the time [conj]	14
28	know at the time of	11
29	know at the time of	11
30	know at the time that	10