Seraphin I think it's correct to say "Recently I have been feeling ill" - feeling ill from the past to the present. But I wonder if I can say " Recently I felt ill " - I am now feeling fine, but recently I felt ill. Yes Also, in the following examples " Several recent studies have used the new technologies to show that ...
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SeraphinI think it's correct to say
"Recently I have been feeling ill" - feeling ill from the past to the present.
But I wonder if I can say " Recently I felt ill " - I am now feeling fine, but recently I felt ill. Yes
Also, in the following examples
" Several recent studies have used the new technologies
Seraphinfor simple past - the sentence "recent studies used .. " means they don't use the new technologies anymoreThat sentence doesn't tell us anything about what may or may not be in current use.
SeraphinI have problems interpreting the usage of the verb "to show".Demonstrate or prove would be synonyms in this context.