Learn Dutch: Die wolkenkrabbers in het centrum worden steeds hoger. - Those skyscrapers in the center are getting taller and taller.

In English, we repeat the comparative to show ongoing change ("taller and taller"). In Dutch, you use the adverb steeds (which means constantly or increasingly) followed by just one comparative adjective. So, steeds hoger is the standard and most natural way to say "taller and taller" or "increasingly tall".

Why is the comparative of hoog spelled as hoger with only one "o"?

This is a classic Dutch spelling rule. The word hoog (high/tall) has a double vowel to keep the "o" sound long in a closed syllable. When you add the -er ending, the syllables split into ho-ger. Because the first syllable now ends in a vowel (an open syllable), the single "o" is naturally pronounced long, so the second "o" is dropped.

Why is the verb worden used here instead of a form of zijn (to be)?

While English says they "are getting" taller, Dutch uses worden, which means "to become". You use worden whenever a subject is actively changing states. If you used zijn (to be), it would just mean the skyscrapers are already tall, and you would lose the idea of progressive change.

What is the literal translation of the word wolkenkrabbers?