A question about tens

A question about tens
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#1

does everyone know about this sentence
" he had lost touch with his family"
what’s the difference between had lost touch and has lost touch.
thanks

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این تاپیک مربوط به درس «درس دیدگاه» در اپلیکیشن زبانشناس است (دوره «بسته ی انگلیسی قدرت»، فصل «قلب سالم»)


#2

past perfect

present perfect