Present perfect simple and past perfect simple

0 I've never heard of 'present perfect simple and past perfect simple' but 'present perfect and past perfect'. I am expecting any information concerning with this . 0-

0 With Present perfect simple I mean f. e. has been and the other one had been. Maybe it is called just present perfect and past perfect, I don't know.. never really knew what the name of the tenses are ^^ 0-

0 Simple present perfect: 02br
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00e.g. I have worked 02br
00 have I worked? 02br
00 I have not worked 02br
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001. We use this to say that something in the past is connected with the present: 02br
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00"Lemon and Jack have learned some grammar" - They learned it in the past, but still know it

0I think I understand it now, thx for the explanation abbie05000. Just one more question about your first example - Lemon and Jack have learned some grammar: I would have used past tense, would that be wrong or would that just have another meaning? Because you said that they learned it in the past but still know it now, does that mean that if I would use past tense that would mean that th

0 In my last post I wrote a question where I didn't know whether I should put as or like (can it also have the same meaning 01b00as02b00 present perfect). Do you mind if I ask this question here or shall I make a new thread? 02br
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00In case it doesn't bother... 02br
00I know that you use 01b00as02b00 like f. e. in

0 "Lemon and Jack have learned some grammar" - it was just an example of how you could use the simple present perfect, Lemon. 02br
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00Of course you can say "They learned some grammar at school", for example, using the simple past. We use simple past to express something which happened in the past, and is now over. "They learned grammar at school" - (they are not learning

0 But in such sentences as which one, lemon? 0-

0 Sorry if that wasn't clear... I meant this sentence: Can it also have the same meaning 01b00as02b00 present perfect. 02br
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00That's just an example, not a good one though.. the sentence itself seems to me a bit strange XD.. but can't think of another one now... just remembered this problem when I wrote this sentence but I hope you still can help m

0 I just realized that your question is a good sentence as an example^^.. In my post I wrote such sentences 01b00like02b00.. which is wrong. So, how do I know if I have to write as or like? 0-

0 Good question, lemon. One definition of 'as' is 'like'! 02br
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00I think what is probably slightly wrong with your sentence "I wrote such sentences like.." 02br
00is the word order. 02br
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00It would be better to say: I wrote, "sentences such as ..." 02br
00or "I wrote, "sentences like ...." 02br
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