Which one is correct? How did he develop? How did he developed?
"How did he develop ...." is right. After DO, DOES, DID, DON'T, DOESN'T, and DIDN'T, use the base form (bare infinitive) of the verb:
- DID she EAT her lunch?
- DOES Peter KNOW the answer?
- DON'T they FEEL my sadness?
- DO people in L.A. MEET a lot of celebrities?
- DID she EAT her lunch?
- DOES Peter KNOW the answer?
- DON'T they FEEL my sadness?
- DO people in L.A. MEET a lot of celebrities?
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Aiman Syamil
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