SN4 ""

No	Pattern	Freq
1	[adj] [noun] at a time when	139
2	[adj] [noun] at a time when	118
3	[prep] [noun] at a time when	86
4	[prep] [noun] at a time when	86
5	[noun] [noun] at a time when	58
6	[art] [noun] at a time when	50
7	[art] [noun] at a time when	50
8	[noun sg] [noun] at a time when	47
9	the [noun] at a time when	41
10	the [noun] at a time when	41
11	[verb] [noun] at a time when	36
12	of [noun] at a time when	33
13	[pron] [noun] at a time when	33
14	[pos pn] [noun] at a time when	33
15	of [noun] at a time when	33
16	in [noun] at a time when	15
17	in [noun] at a time when	15
18	take [noun] at a time when	14
19	[coord] [noun] at a time when	12
20	[conj] [noun] at a time when	12
21	and [noun] at a time when	10
22	and [noun] at a time when	10
23	[noun prp] [noun] at a time when	10
24	[det] [noun] at a time when	9
25	a [noun] at a time when	9
26	to [noun] at a time when	9
27	[num] [noun] at a time when	9
28	a [noun] at a time when	9
29	to [noun] at a time when	9
30	[vb past] [noun] at a time when	9