SN4 ""

No	Pattern	Freq
1	have been [v-ing] [prep] [adv]	211
2	have been [v-ing] for [adv]	119
3	had been [v-ing] [prep] [adv]	65
4	has been [v-ing] [prep] [adv]	47
5	have been [v-ing] [prep] [adv]	44
6	've been [v-ing] [prep] [adv]	37
7	have been [v-ing] at [adv]	28
8	have been [v-ing] about [adv]	28
9	have been [v-ing] [prep] about	23
10	have been [v-ing] [prep] about	23
11	have been [v-ing] [prep] so	21
12	have been [v-ing] [prep] so	21
13	have been talking [prep] [adv]	20
14	'd been [v-ing] [prep] [adv]	18
15	have been [v-ing] [prep] over	16
16	have been [v-ing] [prep] more	16
17	have been [v-ing] [prep] more	16
18	have been [v-ing] [prep] over	16
19	have been [v-ing] [prep] [Wh adv]	16
20	have been running [prep] [adv]	14
21	have been going [prep] [adv]	14
22	have been waiting [prep] [adv]	13
23	have been [v-ing] [prep] how	12
24	have been [v-ing] [prep] how	12
25	have been looking [prep] [adv]	11
26	have been [v-ing] [prep] only	10
27	have been [v-ing] [prep] only	10
28	's been [v-ing] [prep] [adv]	10
29	have been [v-ing] with [adv]	9
30	have been [v-ing] [prep] ever	9