Re: What is the correct sentence in the following?
Mamta
I did share the files
You are correct, but it would be helpful for the questioner if you stated the reason, which is:
"Did" is the past tense of "do" which is an auxiliary verb here, and auxiliaries take a bare infinitival clause as complement. That means that the verb that follows auxiliary "do" is always in the infinitive form, in this case "share", never a tensed form like the past form "shared, or the past participle form, also "shared".