SN4 ""

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