SN4 ""

No	Pattern	Freq
1	[verb] [adv] at the time of	39
2	[noun] [adv] at the time of	22
3	[vb pp] [adv] at the time of	19
4	be [adv] at the time of	13
5	[be] [adv] at the time of	13
6	[adv] [adv] at the time of	12
7	[noun sg] [adv] at the time of	9
8	[noun pl] [adv] at the time of	9
9	[coord] [adv] at the time of	8
10	[conj] [adv] at the time of	8
11	[adv] [adv] at the time of	8
12	[vb past] [adv] at the time of	8
13	[v-ing] [adv] at the time of	7
14	[adj] [adv] at the time of	7
15	[was/were] [adv] at the time of	6
16	was [adv] at the time of	5
17	been [adv] at the time of	5
18	[been] [adv] at the time of	5
19	[adv] [adj] at the time of	59
20	[adv] [verb] at the time of	57
21	[adv] [vb pp] at the time of	41
22	[adv] [adj] at the time of	41
23	[adv] [num] at the time of	16
24	[adv] [adv] at the time of	12
25	[adv] [adv] at the time of	11
26	[adv] [conj] at the time of	9
27	[adv] [vb infin] at the time of	6
28	[adv] available at the time of	5
29	[adv] investigate at the time of	5
30	[adv] available at the time of	5