B2 English Grammar Profile point 76 in the category of PAST is:
past perfect continuous WITH ADVERBS in the normal mid position
For example:
I had just been doing some reading.
An iWeb search for:
had _rr been _vvg
1 HAD ALREADY BEEN WORKING 359
2 HAD ALREADY BEEN USING 210
3 HAD PREVIOUSLY BEEN USING 122
4 HAD ALSO BEEN WORKING 106
5 HAD ALREADY BEEN GOING 84
6 HAD ALREADY BEEN LIVING 79
7 HAD ALREADY BEEN PLAYING 79
8 HAD ALREADY BEEN THINKING 77
9 HAD JUST BEEN TALKING 77
10 HAD ALREADY BEEN TAKING 73
11 HAD PREVIOUSLY BEEN WORKING 71
12 HAD ALREADY BEEN MAKING 67
13 HAD ALL BEEN WAITING 66
14 HAD ALREADY BEEN PLANNING 61
15 HAD ALSO BEEN DRINKING 60
16 HAD ALREADY BEEN RUNNING 56
17 HAD JUST BEEN THINKING 55
18 HAD ALREADY BEEN LOOKING 53
19 HAD JUST BEEN SITTING 52
20 HAD JUST BEEN READING 50
21 HAD ALREADY BEEN WAITING 48
22 HAD ALREADY BEEN TALKING 46
23 HAD ALREADY BEEN WRITING 45
24 HAD ALWAYS BEEN LOOKING 43
25 HAD ALSO BEEN TAKING 41
26 HAD ACTUALLY BEEN WORKING 39
27 HAD ALSO BEEN USING 37
28 HAD REALLY BEEN LOOKING 37
29 HAD ONLY BEEN WORKING 36
30 HAD LONG BEEN LOOKING 35
31 HAD ALREADY BEEN BUILDING 34
32 HAD BOTH BEEN DRINKING 34
33 HAD JUST BEEN USING 34
34 HAD ALSO BEEN LOOKING 33
35 HAD JUST BEEN WAITING 31
36 HAD RECENTLY BEEN WORKING 31
37 HAD LONG BEEN WAITING 30
38 HAD ALREADY BEEN SERVING 29
39 HAD JUST BEEN WORKING 29
40 HAD ALSO BEEN THINKING 28
41 HAD JUST BEEN LOOKING 28
42 HAD ONLY BEEN LIVING 28
43 HAD ALSO BEEN SUFFERING 27
44 HAD ALSO BEEN TRYING 26
45 HAD ALL BEEN DRINKING 26
46 HAD ALREADY BEEN SELLING 26
47 HAD ALREADY BEEN OPERATING 26
48 HAD JUST BEEN PLAYING 26
49 HAD ALREADY BEEN STUDYING 25
50 HAD PREVIOUSLY BEEN LIVING 25
51 HAD ALREADY BEEN DRINKING 24
52 HAD BOTH BEEN WORKING 24
53 HAD JUST BEEN STANDING 24
54 HAD RECENTLY BEEN LIVING 24
55 HAD JUST BEEN TRYING 23
56 HAD JUST BEEN WATCHING 22
57 HAD NEVER BEEN CAMPING 22
58 HAD OBVIOUSLY BEEN DRINKING 22
59 HAD ONLY BEEN DATING 22
60 HAD PREVIOUSLY BEEN TAKING 22
61 HAD ALREADY BEEN TRYING 21
62 HAD ACTUALLY BEEN LOOKING 21
63 HAD JUST BEEN GOING 21
64 HAD ALSO BEEN TALKING 20
65 HAD ALSO BEEN LIVING 20
66 HAD ALSO BEEN READING 20
67 HAD ALL BEEN WORKING 20
68 HAD JUST BEEN DISCUSSING 20
69 HAD LONG BEEN SEEKING 20
70 HAD ALREADY BEEN TRAINING 19
71 HAD ALREADY BEEN INVESTIGATING 19
72 HAD ALL BEEN GOING 19
73 HAD ALLEGEDLY BEEN DRINKING 19
74 HAD ACTUALLY BEEN TRYING 19
75 HAD ALSO BEEN PLANNING 18
76 HAD ACTUALLY BEEN USING 18
77 HAD ALREADY BEEN CIRCULATING 18
78 HAD LONG BEEN PREPARING 18
79 HAD LONG BEEN USING 18
80 HAD LONG BEEN WORKING 18
81 HAD ALREADY BEEN MOVING 17
82 HAD ALWAYS BEEN WAITING 17
83 HAD APPARENTLY BEEN LIVING 17
84 HAD ONLY BEEN PLAYING 17
85 HAD PREVIOUSLY BEEN GOING 17
86 HAD RECENTLY BEEN READING 17
87 HAD ALSO BEEN PLAYING 16
88 HAD ALSO BEEN MAKING 16
89 HAD ALSO BEEN STRUGGLING 16
90 HAD ALREADY BEEN DEVELOPING 16
91 HAD ALREADY BEEN EXPLORING 16
92 HAD ALREADY BEEN EXPERIMENTING 16
93 HAD ALREADY BEEN READING 16
94 HAD ALREADY BEEN PAYING 16
HAD ORIGINALLY BEEN PLANNING
The Irish TimesHAD PREVIOUSLY BEEN LACKING
Goal.com97 HAD PREVIOUSLY BEEN RUNNING 16
98 HAD ALREADY BEEN PERFORMING 15
99 HAD ALREADY BEEN TEACHING 15
100 HAD ALREADY BEEN GIVING 15