SN4 ""

No	Pattern	Freq
1	[was/were] [verb] at the [noun]	2085
2	[was/were] [verb] at the [noun sg]	1704
3	was [verb] at the [noun]	1528
4	[was/were] [vb pp] at the [noun]	1392
5	[was/were] [v-ing] at the [noun]	658
6	were [verb] at the [noun]	557
7	[was/were] [verb] at the [noun prp]	227
8	[was/were] [verb] at the time	209
9	[was/were] [verb] at the time	208
10	[was/were] [verb] at the end	160
11	[was/were] [verb] at the end	159
12	[was/were] [verb] at the [noun pl]	144
13	[was/were] look at the [noun]	116
14	[was/were] looking at the [noun]	107
15	[was/were] stand at the [noun]	83
16	[was/were] standing at the [noun]	82
17	[was/were] held at the [noun]	71
18	[was/were] hold at the [noun]	71
19	[was/were] sit at the [noun]	56
20	[was/were] sitting at the [noun]	55
21	[was/were] [verb] at the beginning	48
22	[was/were] [verb] at the beginning	48
23	[was/were] stare at the [noun]	47
24	[was/were] staring at the [noun]	47
25	[was/were] educate at the [noun]	46
26	[was/were] educated at the [noun]	46
27	[was/were] [verb] at the door	41
28	[was/were] [verb] at the door	41
29	[was/were] make at the [noun]	39
30	[was/were] made at the [noun]	38