SN4 ""

No	Pattern	Freq
1	be [v-ing] at the [noun sg]	1132
2	was [v-ing] at the [noun sg]	434
3	be looking at the [noun sg]	202
4	be [v-ing] at the [noun sg]	141
5	be [v-ing] at the moment	127
6	were [v-ing] at the [noun sg]	115
7	are [v-ing] at the [noun sg]	104
8	is [v-ing] at the [noun sg]	96
9	be standing at the [noun sg]	87
10	been [v-ing] at the [noun sg]	87
11	be [v-ing] at the time	84
12	be sitting at the [noun sg]	76
13	's [v-ing] at the [noun sg]	62
14	're [v-ing] at the [noun sg]	56
15	be staring at the [noun sg]	47
16	be [v-ing] at the door	43
17	be [v-ing] at the end	42
18	be staying at the [noun sg]	39
19	be doing at the [noun sg]	39
20	be working at the [noun sg]	37
21	be waiting at the [noun sg]	36
22	be happening at the [noun sg]	36
23	be [v-ing] at the rate	34
24	be [v-ing] at the table	28
25	'm [v-ing] at the [noun sg]	28
26	be [v-ing] at the top	28
27	be [v-ing] at the back	25
28	be [v-ing] at the window	17
29	be going at the [noun sg]	15
30	be living at the [noun sg]	14