1 Lately, when I have been checking people’s profiles, I notice that ...
2 Lately, when I have been checking people’s profiles, I have noticed that ...
3 Lately, when I have been checking people’s profiles, I noticed that ...
4 Recently, when I have been checking people’s profiles, I noticed that ...
I am pretty sure that 1 and 2 are correct. What about 3 and 4?
All of them do not sound good to me. In your context, I strongly tend to use "While" but the problem is that I don't think we could use "While" with the present perfect continues. So I would have to change the tense.
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All of them do not sound good to me. In your context, I strongly tend to use "While" but the problem is that I don't think we could use "While" with the present perfect continues. So I would have to change the tense.
"While I was checking people’s profiles, I noticed that..."
"I was checking people’s profiles when I noticed that..."
First, you need to post complete sentences.
These are natural English.
Lately, when I am checking people’s profiles, I notice that I get very hungry.
Lately, when I am checking people’s profiles, I have noticed that I get very hungry.
Lately, when I wa