SN4 ""

No	Pattern	Freq
1	[prep] [noun sg] at the time	298
2	[prep] [noun sg] at the time	298
3	in [noun sg] at the time	107
4	of [noun sg] at the time	86
5	on [noun sg] at the time	33
6	[prep] force at the time	22
7	for [noun sg] at the time	14
8	[prep] existence at the time	11
9	at [noun sg] at the time	10
10	to [noun sg] at the time	9
11	[prep] use at the time	9
12	under [noun sg] at the time	8
13	[prep] mind at the time	7
14	[prep] age at the time	7
15	[prep] duty at the time	7
16	[prep] holiday at the time	7
17	[prep] place at the time	6
18	[prep] parliament at the time	5
19	into [noun sg] at the time	5
20	[prep] home at the time	5
21	about [noun sg] at the time	5
22	[prep] practice at the time	5
23	[prep] society at the time	5