SN4 ""

No	Pattern	Freq
1	[adv] have been [v-ing]	95
2	[adv] has been [v-ing]	41
3	[adv] had been [v-ing]	34
4	well have been [v-ing]	30
5	[adv] have been [v-ing]	23
6	else have been [v-ing]	11
7	also have been [v-ing]	10
8	[adv] have been going	10
9	before have been [v-ing]	8
10	too have been [v-ing]	7
11	then have been [v-ing]	7
12	[adv] have been doing	7
13	already have been [v-ing]	7
14	really have been [v-ing]	7
15	far have been [v-ing]	6
16	[adv] have been happening	6
17	[adv] have been using	5
18	[adv] have been making	5