So I'm using the website, 'howtostudyKorean' and I have a question about a sentence I recently encountered. Here's the sentence. 저는 이제 수업을 시작할 거예요. Now this sentence is supposed to say, according to the website, "I will start the class now". Here's my question. Why isn't particle 에 attached to 이제?
이제 is an adverb indicating when and according to this website, adverbs indicating when and where should have the particle 에 attached. So can someone tell me if I'm doing something wrong, or just help me with the rules of Korean adverbs?