- Did you contacted them?
- Did you contact them?
Which of above sentences is correct? If both are correct, what's the difference between them? In which scenarios can I use them?
- Did you contacted them?
- Did you contact them?
Which of above sentences is correct? If both are correct, what's the difference between them? In which scenarios can I use them?
The auxiliary verb do, in all its parts (did, does, don't, didn't, doesn't) is always followed by the infinitive ("eat", "be", "contact") never by the past ("ate", "was", "contacted") or the past participle ("eaten", "been", "contacted").