SN4 ""

No	Pattern	Freq
1	be [verb] at the time	384
2	[be] [verb] at the time	384
3	[be] [verb] at the time	383
4	[be] [vb pp] at the time	297
5	[was/were] [verb] at the time	209
6	was [verb] at the time	131
7	[be] [v-ing] at the time	85
8	were [verb] at the time	78
9	[be] [verb] at the time	64
10	been [verb] at the time	64
11	be [verb] at the time	64
12	[been] [verb] at the time	64
13	[be] make at the time	21
14	[be] made at the time	20
15	[is] [verb] at the time	18
16	is [verb] at the time	16
17	[be] do at the time	15
18	[being] [verb] at the time	15
19	being [verb] at the time	15
20	[am/are] [verb] at the time	14
21	are [verb] at the time	12
22	[be] doing at the time	11
23	[be] working at the time	9
24	[be] work at the time	9
25	[be] known at the time	8
26	[be] know at the time	8
27	[be] living at the time	7
28	[be] published at the time	7
29	[be] say at the time	7
30	[be] happening at the time	7