SN4 ""

No	Pattern	Freq
1	[noun] [noun] at the time [prep]	148
2	[noun] [verb] at the time [prep]	108
3	[noun] [noun sg] at the time [prep]	91
4	[noun] [vb pp] at the time [prep]	57
5	[noun] [adj] at the time [prep]	47
6	[noun] [adj] at the time [prep]	42
7	[noun] [conj] at the time [prep]	34
8	[noun] [noun pl] at the time [prep]	32
9	[noun] [noun prp] at the time [prep]	24
10	[noun] [adv] at the time [prep]	22
11	[noun] [v-ing] at the time [prep]	21
12	[noun] [coord] at the time [prep]	20
13	[noun] [adv] at the time [prep]	18
14	[noun] [vb past] at the time [prep]	16
15	[noun] be at the time [prep]	13
16	[noun] and at the time [prep]	13
17	[noun] [be] at the time [prep]	13
18	[noun] and at the time [prep]	13
19	[noun] available at the time [prep]	10
20	[noun] [pron] at the time [prep]	10
21	[noun] make at the time [prep]	10
22	[noun] available at the time [prep]	10
23	[noun] made at the time [prep]	10
24	[noun] exist at the time [prep]	8
25	[noun] [vb -s] at the time [prep]	8
26	[noun] old at the time [prep]	7
27	[noun] [that] at the time [prep]	7
28	[noun] that at the time [prep]	7
29	[noun] [subord] at the time [prep]	7
30	[noun] [was/were] at the time [prep]	7