SN4 ""

No	Pattern	Freq
1	've been [v-ing] [prep] this	42
2	have been [v-ing] [prep] this	39
3	have been [v-ing] for this	28
4	have been [v-ing] in this	26
5	has been [v-ing] [prep] this	19
6	have been working [prep] this	19
7	have been [v-ing] on this	18
8	have been [v-ing] about this	17
9	have been waiting [prep] this	14
10	had been [v-ing] [prep] this	14
11	have been [v-ing] with this	11
12	'd been [v-ing] [prep] this	9
13	's been [v-ing] [prep] this	8
14	have been talking [prep] this	7
15	have been [v-ing] at this	7
16	have been thinking [prep] this	7
17	have been living [prep] this	6
18	have been asking [prep] this	6
19	have been [v-ing] throughout this	5
20	have been [v-ing] like this	5
21	have been [v-ing] [prep] this	5
22	have been looking [prep] this	5