SN4 ""

No	Pattern	Freq
1	[noun sg] at an early	114
2	[noun sg] at an annual	22
3	[noun sg] at an additional	21
4	armour at an [adj]	19
5	[noun sg] at an appropriate	18
6	[noun sg] at an average	15
7	[noun sg] at an affordable	14
8	[noun sg] at an international	12
9	[noun sg] at an old	10
10	place at an [adj]	10
11	[noun sg] at an estimated	10
12	[noun sg] at an individual	9
13	[noun sg] at an alarming	9
14	attempt at an [adj]	7
15	[noun sg] at an industrial	7
16	year at an [adj]	6
17	[noun sg] at an agreed	6
18	[noun sg] at an initial	6
19	[noun sg] at an open	6
20	[noun sg] at an official	6
21	work at an [adj]	6
22	[noun sg] at an extraordinary	6
23	look at an [adj]	5
24	[noun sg] at an unspecified	5
25	advice at an [adj]	5