With these time expressions we are thinking about a definite or finished time in the past, so we wound normally use a past tense. Compare the following: When did Brenda phone? ~ Not long ago.

They proposed that tense expression deficiencies could result from two separate processes: encoding and retrieval. During encoding, a speaker develops the idea of time. During retrieval ...

This project focuses on detecting facial expressions in real-time using a webcam and a deep learning model. The model is trained to recognize expressions such as happiness, disgust, surprise, and more ...

By: Amit Goldenberg, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari, Jamil Zaki and James J. Gross ...

We do sometimes omit on in time expressions in informal English, although I think it is more characteristic of American English than British English. So in your first example, Anid, both versions ...