You have to make some effort yourself first. What do you think is incorrect in those sentences? CJ
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prince78I think it should be:1) He checks the door every day before he goes to bed.present simpleCorrect.
AnonymousWhy is it present simple and not present continuous?Unless other words in the sentence indicate otherwise, we assume it's a description of a permanent habit rather than a temporary one.
AnonymousThey have been shopping yesterdayYou can't use the present perfect with any mention of a time in the past (yesterday). You will have to change it to the past tense.
AnonymousBy the time he is seventy, he will visited many countries."will visited" does not form any tense. You need the future perfect tense here.
Correction: I learned to play chess in school.
Tense: Simple past
Use: An action completed in the past