SN4 ""

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