Learn Hardcore Esperanto: Fajro estas tre varma.

Fajro means fire; estas is the present tense of to be (similar to the English "is"); tre translates as very; and varma means hot.

Why is there no article before fajro?

In Esperanto, the definite article is la (meaning "the"). However, when making a general statement—like saying "fire is very hot"—the article is typically unnecessary. This differs from English, where we might say "the fire" or simply "fire" depending on context.

What is the role of estas in this sentence?

Estas is the present tense form of the verb esti (to be). It functions as a linking verb, connecting the subject fajro with the predicate adjective phrase tre varma.

Why is tre placed before varma?

Tre is an adverb that means very. It is used to intensify the adjective varma (hot), indicating a high degree of heat. In Esperanto, as in English, adverbs modifying adjectives typically come directly before the adjective.

How are adjectives and nouns formed in Esperanto, as seen in this sentence?

Esperanto nouns end in -o (so fajro is a noun meaning fire) and adjectives end in -a (so varma is an adjective meaning hot). This consistent ending pattern helps indicate each word’s grammatical function regardless of its position in the sentence.

Is the word order in Esperanto strict, or can it be flexible as seen in this sentence?

While the default order is subject-verb-predicate (similar to English), Esperanto’s regular endings (like -o for nouns and -a for adjectives) allow for considerable flexibility. In this sentence, the order clearly indicates each word’s role; however, with proper endings, words can often be rearranged for emphasis without causing confusion.