Is the use of the present perfect continuous “has been leading” grammatical in this paragraph, although it contains the past simple tense in the other sentences? Thank you! “Guilford, was the first to differentiate between convergent and divergent thinking. Divergent thinking has since become a characteristic identifier for creative thinking. His research along with his admonition for others to begin studying the psychology of creativity has been leading to an explosion of studies and numerous theories on creativity. The plethora of creativity theories developed over the past thirty years necessitated that scientists group the current theories into 10 categories.”

Hi dear English teachers! Is the adverb “possibly” grammatical and logical in this sentence? Thank you very much! “He challenged researchers to study it empirically – to come up with a plausible way of describing how creativity possibly occurs.”

Do you know any Christmas words in Italian? Now you do! :)

What is your favorite italian dialect ? :)

Who among you guys has spent or is going to spend his/her holiday in Italy this year? ;)

STUDENTS OF ITALIAN: What is your favorite Italian book and why? ;)

What does it mean “User doesn’t exist” on Italki?

Do you know this Italian idiom about chickens ? What is the version in your native language? :)

What do you think about Netflix Italian new series "Curon"? ;)