SN4 ""

No	Pattern	Freq
1	[pers pn] have been [v-ing] [prep] a	235
2	[pers pn] have been [v-ing] for a	101
3	[pers pn] had been [v-ing] [prep] a	92
4	i have been [v-ing] [prep] a	75
5	he have been [v-ing] [prep] a	67
6	[pers pn] 've been [v-ing] [prep] a	48
7	[pers pn] have been [v-ing] in a	44
8	[pers pn] have been [v-ing] [prep] a	42
9	[pers pn] 'd been [v-ing] [prep] a	41
10	she have been [v-ing] [prep] a	32
11	[pers pn] have been [v-ing] [prep] an	31
12	[pers pn] have been working [prep] a	31
13	they have been [v-ing] [prep] a	28
14	[pers pn] have been [v-ing] on a	26
15	[pers pn] 's been [v-ing] [prep] a	26
16	we have been [v-ing] [prep] a	25
17	it have been [v-ing] [prep] a	23
18	[pers pn] have been [v-ing] with a	17
19	[pers pn] have been living [prep] a	17
20	[pers pn] has been [v-ing] [prep] a	16
21	you have been [v-ing] [prep] a	15
22	[pers pn] have been [v-ing] at a	14
23	[pers pn] have been [v-ing] as a	14
24	[pers pn] have been looking [prep] a	14
25	[pers pn] have been [v-ing] like a	11
26	[pers pn] have been sitting [prep] a	11
27	[pers pn] have been going [prep] a	10
28	[pers pn] have been [v-ing] to a	9
29	[pers pn] have been waiting [prep] a	9
30	[pers pn] have been talking [prep] a	7