SN4 ""

No	Pattern	Freq
1	[was/were] [v-ing] at the	816
2	was [v-ing] at [art]	784
3	were [v-ing] at [art]	244
4	[was/were] [v-ing] at a	177
5	[was/were] looking at [art]	174
6	[was/were] standing at [art]	106
7	[was/were] sitting at [art]	90
8	[was/were] staring at [art]	62
9	[was/were] working at [art]	43
10	[was/were] speaking at [art]	35
11	[was/were] [v-ing] at an	34
12	[was/were] waiting at [art]	30
13	[was/were] staying at [art]	28
14	[was/were] happening at [art]	17
15	[was/were] running at [art]	16
16	[was/were] doing at [art]	14
17	[was/were] living at [art]	13
18	[was/were] gazing at [art]	12
19	[was/were] growing at [art]	11
20	[was/were] going at [art]	9
21	[was/were] protesting at [art]	9
22	[was/were] arriving at [art]	8
23	[was/were] lying at [art]	7
24	[was/were] playing at [art]	7
25	[was/were] shouting at [art]	7
26	[was/were] laughing at [art]	6
27	[was/were] appearing at [art]	6
28	[was/were] leaving at [art]	6
29	[was/were] expanding at [art]	5
30	[was/were] performing at [art]	5