SN4 ""

No	Pattern	Freq
1	be [adv] [vb pp] at the time	65
2	[be] [adv] [vb pp] at the time	65
3	[was/were] [adv] [vb pp] at the time	49
4	was [adv] [vb pp] at the time	35
5	[adv] [adv] [vb pp] at the time	16
6	were [adv] [vb pp] at the time	14
7	[adv] [adv] [vb pp] at the time	10
8	[verb] [adv] [vb pp] at the time	7
9	[noun] [adv] [vb pp] at the time	6
10	[not/n't] [adv] [vb pp] at the time	6
11	not [adv] [vb pp] at the time	6
12	been [adv] [vb pp] at the time	5
13	[been] [adv] [vb pp] at the time	5
14	have [adv] [vb pp] at the time	5
15	not [adv] [vb pp] at the time	5
16	[adv] [adv] [vb pp] at the time	10
17	[adv] [adv] [vb pp] at the time	10
18	[adv] [be] [vb pp] at the time	7
19	[adv] be [vb pp] at the time	7
20	[adv] [vb pp] [noun] at the time	5
21	[adv] [vb pp] at the [adj] time	22
22	[adv] [vb pp] at the same time	17
23	[adv] [vb pp] at the same time	17
24	[adv] [vb pp] at the [det] time	17
25	[adv] [vb pp] at the time [prep]	37
26	[adv] [vb pp] at the time [prep]	37
27	[adv] [vb pp] at the time of	29
28	[adv] [vb pp] at the time of	29
29	[adv] [vb pp] at the time [conj]	17
30	[adv] [vb pp] at the time that	7