SN4 ""

No	Pattern	Freq
1	have been [v-ing] at	446
2	had [been] [v-ing] at	148
3	have [been] looking at	135
4	have [been] [v-ing] at	90
5	has [been] [v-ing] at	73
6	've [been] [v-ing] at	69
7	have [been] working at	41
8	'd [been] [v-ing] at	29
9	's [been] [v-ing] at	16
10	have [been] [v-ing] at	14
11	have [been] staying at	13
12	have [been] living at	13
13	have [been] sitting at	13
14	have [been] running at	11
15	have [been] staring at	9
16	have [been] happening at	7
17	have [been] standing at	6
18	have [been] growing at	6
19	have [been] doing at	6
20	have [been] trading at	5
21	to have [been] [v-ing] at	5