SN4 ""

No	Pattern	Freq
1	had been [v-ing] [prep] [pos pn]	146
2	have been [v-ing] [prep] his	134
3	have been [v-ing] [prep] her	83
4	has been [v-ing] [prep] [pos pn]	68
5	have been [v-ing] on [pos pn]	58
6	have been [v-ing] with [pos pn]	57
7	have been [v-ing] in [pos pn]	51
8	have been [v-ing] [prep] my	48
9	've been [v-ing] [prep] [pos pn]	37
10	have been [v-ing] for [pos pn]	35
11	have been [v-ing] [prep] [pos pn]	34
12	have been [v-ing] to [pos pn]	31
13	have been [v-ing] [prep] [pos pn]	29
14	have been [v-ing] [prep] their	29
15	have been working [prep] [pos pn]	26
16	have been [v-ing] [prep] our	24
17	'd been [v-ing] [prep] [pos pn]	24
18	have been [v-ing] about [pos pn]	24
19	have been living [prep] [pos pn]	22
20	have been [v-ing] [prep] its	20
21	have been [v-ing] [prep] your	19
22	have been [v-ing] at [pos pn]	17
23	have been talking [prep] [pos pn]	17
24	's been [v-ing] [prep] [pos pn]	15
25	have been sitting [prep] [pos pn]	15
26	have been looking [prep] [pos pn]	13
27	have been [v-ing] through [pos pn]	11
28	have been waiting [prep] [pos pn]	11
29	have been [v-ing] from [pos pn]	10
30	have been [v-ing] since [pos pn]	10