The supplier has tried to deliver the fixing screws, but it doesn't fit the wall hanging display panel.
The supplier tried to deliver the fixing screws, but it doesn't fit the wall hanging display panel.
The first one sounds ok. The second one has a tense inconsistency. 'tried to' is past tense.
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The first one sounds ok.
The second one has a tense inconsistency. 'tried to' is past tense. 'it doesn't' is present tense. It should be 'but it didn't fit the wall hanging display panel.'
However, I may be wrong. Best to wait for another reply from a more qualified source.
Neither one is correct, but not because of the tense of the verb. Either tense is good there.
"The supplier has delivered mounting screws, but they do not fit the wall hanging display panel." I don't know what you mean by "wall hanging display panel", so I did not change it.
anonymousThe supplier has tried to deliver ... .
The supplier tried to deliver ....
When you say, "The supplier tried to deliver the item.", it means that they were