Wh- questions

[wotcha]

1) Who tells you about that?

2) Who tell you about that?

Are the both possible or only 1) is grammatically correct?

[freezeframe]

1) Who tells you about that? Correct but sounds a little strange. What situation do you want to say this in? It seems more likely to be "Who told you about that?" But your sentence is also possible, depending on what you mean.

2) Who tell you about that? incorrect

Are the both possible or only 1) is grammatically correct?

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