SN4 ""

No	Pattern	Freq
1	[prep] a [noun] at the time	41
2	[prep] a [noun] at the time	41
3	[verb] a [noun] at the time	35
4	be a [noun] at the time	20
5	[be] a [noun] at the time	20
6	[was/were] a [noun] at the time	17
7	was a [noun] at the time	17
8	have a [noun] at the time	14
9	[vb past] a [noun] at the time	13
10	[v-ing] a [noun] at the time	11
11	[adv] a [noun] at the time	8
12	of a [noun] at the time	8
13	of a [noun] at the time	8
14	in a [noun] at the time	7
15	in a [noun] at the time	7
16	to a [noun] at the time	6
17	as a [noun] at the time	6
18	[adv] a [noun] at the time	6
19	[vb infin] a [noun] at the time	6
20	had a [noun] at the time	6
21	to a [noun] at the time	6
22	as a [noun] at the time	6
23	have a [noun] at the time	5
24	a [adj] [noun] at the time	93
25	a [adj] [noun] at the time	88
26	a [noun] [noun] at the time	34
27	a [noun sg] [noun] at the time	31
28	a good [noun] at the time	19
29	a good [noun] at the time	19
30	a [noun] [noun sg] at the time	34