Simple present or present progressive

Signal words

Signal words Simple Present: always, every, never, normally, now and then, occasionally, often, rarely, seldom, sometimes, usually.
Verbs:
hate, know, like, love, smell, want

Signal words Present Continuous (Progressive): at the moment, at present, just, just now, now, right now, still, today, tonight.
Verbs:
Look! Listen!

Comparison simple - present progressive

Comparison of tenses  with free online exercises, passive rules and passive voice examples. Online exercises Comparison of tenses, Comparison of tenses questions and Comparison of tenses negative sentences.

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Free tutorial Comparison of tenses. English Comparison of tenses exercises. English grammar easy to learn. Comparison of tenses matching exercises, quizzes and riddles - English word order.