Questions & Answers about Ég er að æfa meira.
Why do we use meira here for "more"?
Meira is the comparative form of the adverb mikið (much). Because it describes the verb æfa (how much you are practicing), we use the adverb form.
I've also seen meiri for "more". Why does this sentence use meira?
When "more" is used as an adverb to modify a verb, it always takes the neuter form meira. You only use meiri when you need an adjective to describe masculine or feminine nouns, like meiri mjólk (more milk).
Could I use fleiri to mean "more" in this sentence?
No, because fleiri is only used for countable things, like saying "more books" (fleiri bækur). When talking about an uncountable action or amount, like the act of practicing, you must use meira.
Why does the sentence use er að æfa instead of just saying ég æfi?
The phrase er að plus the infinitive verb æfa creates the continuous tense, perfectly matching the English "am practicing". If you used the simple present tense ég æfi, it would mean "I practice" as a general, ongoing habit.