SN4 ""

No	Pattern	Freq
1	have been [verb] at the time	47
2	[verb] been [verb] at the time	47
3	[vb past] been [verb] at the time	22
4	had been [verb] at the time	20
5	[adv] been [verb] at the time	13
6	[to-vb] been [verb] at the time	12
7	to have been [verb] at the time	12
8	not been [verb] at the time	8
9	[not/n't] been [verb] at the time	8
10	have been [verb] at the time	8
11	[vb infin] been [verb] at the time	8
12	not been [verb] at the time	8
13	[adv] been [verb] at the time	5
14	been [adv] [verb] at the time	5
15	been [adv] [verb] at the time	5
16	been [verb] [adv] at the time	7
17	been [verb] at the [adj] time	17
18	been [verb] at the [det] time	16
19	been [verb] at the same time	16
20	been [verb] at the same time	16
21	been [verb] at the time [prep]	33
22	been [verb] at the time [prep]	33
23	been [verb] at the time of	25
24	been [verb] at the time of	25
25	been [verb] at the time [art]	7
26	been [verb] at the time the	7
27	been [verb] at the time the	7
28	been [verb] at the time [art]	7
29	been [verb] at the time [conj]	6
30	been [verb] at the time and	5