Learn Italian: Porto sempre scarpe sportive. - I always wear sports shoes.

Both portare and indossare can mean 'to wear.' Indossare is specifically used for putting on or wearing clothes. However, portare (which normally means 'to bring' or 'to carry') is very commonly used in everyday spoken Italian to mean 'to wear.'

In English we say 'I always wear', but the Italian is Porto sempre. Does sempre always come after the verb?

Yes! Unlike English, where 'always' usually comes before the verb, Italian adverbs of frequency like sempre (always) and spesso (often) generally go immediately after the conjugated verb.

Why is the adjective sportive used instead of sportivo?

Adjectives in Italian must match the gender and number of the noun they describe. Scarpe (shoes) is a feminine plural noun (the singular is la scarpa), so the base adjective sportivo changes its ending to -e to become the feminine plural sportive.

Why is there no article like le before scarpe sportive?

Just like in English, when you are talking about a plural noun in a general, undefined sense ('sports shoes' in general, not 'the specific sports shoes'), you can leave out the definite article in Italian.