SN4 ""

No	Pattern	Freq
1	[was/were] [vb pp] at a [noun sg]	319
2	was [verb] at a [noun sg]	308
3	were [verb] at a [noun sg]	119
4	[was/were] [v-ing] at a [noun sg]	106
5	[was/were] [verb] at a time	48
6	[was/were] [verb] at a meeting	45
7	[was/were] [verb] at a table	23
8	[was/were] look at a [noun sg]	20
9	[was/were] looking at a [noun sg]	20
10	[was/were] sitting at a [noun sg]	17
11	[was/were] [verb] at a rate	17
12	[was/were] sit at a [noun sg]	17
13	[was/were] speaking at a [noun sg]	14
14	[was/were] [verb] at a press	14
15	[was/were] speak at a [noun sg]	14
16	[was/were] take at a [noun sg]	12
17	[was/were] taken at a [noun sg]	12
18	[was/were] [verb] at a conference	11
19	[was/were] [verb] at a cost	10
20	[was/were] make at a [noun sg]	9
21	[was/were] find at a [noun sg]	9
22	[was/were] found at a [noun sg]	9
23	[was/were] made at a [noun sg]	9
24	[was/were] arrest at a [noun sg]	8
25	[was/were] seat at a [noun sg]	8
26	[was/were] used at a [noun sg]	8
27	[was/were] seated at a [noun sg]	8
28	[was/were] use at a [noun sg]	8
29	[was/were] [verb] at a loss	8
30	[was/were] [verb] at a concentration	8