Question

Is Mark having lunch? или Is Mark have lunch? что будет правильно?

Answer 1

Оба варианта верные,зависит от постановки предложения

Answer 2

Второе неправильно вообще. Только Is Mark having lunch

Answer 3

"Is Mark having lunch?" is the correct sentence. When using the auxiliary verb "is" to form a question in the present continuous tense, the main verb should be in the present participle form, which is "having" in this case. Therefore, the correct sentence is "Is Mark having lunch?"