Exclamatory sentences are statements that express emotions, feelings, states, or evaluations in an intense way. Their communicative purpose is to express a reaction, not to ask a question or give an order. In Portuguese, they are recognized by the exclamatory tone and, in writing, usually by the exclamation point. The subject may appear explicit or be implicit in the structure.

The main marks of an exclamative sentence are the exclamation point and the exclamatory intonation. In addition to punctuation, intensifying words, interjections, and structures starting with que, como or quanto frequently appear. Recognition depends on expressive value and the speaker's intention, not only on the word order.

An interjection is a linguistic element that directly expresses emotions or reactions and can constitute an exclamative sentence on its own. It may appear isolated with an exclamation point or accompanied by complements. In formal contexts, it tends to be used with more moderation, but remains a central resource in exclamative expression.

What functions as an exclamative when introducing an intensified evaluation. It normally appears before a noun, an adjective, or a verb structure. It can admit an explicit subject or have an indeterminate subject, depending on the construction. The sense is expressive intensity, not a question.

How introduces exclamative clauses when it corresponds to “in an intense manner” or “with such intensity.” It tends to appear with adjectives, adverbs, or predicates that describe states or actions. It differs from the interrogative ‘how’ in purpose: here, the focus is to express admiration, surprise or another feeling. The exclamation in writing reinforces this reading.

How much acts as an exclamative to intensify quantity or degree, usually associated with nouns, adjectives, or verbs. It can appear as the nucleus (“How much!”) or in longer constructions (“How much work!”). The central value is expressive amplification, not precise counting. The structure is organized to highlight excess or perceived intensity.

Intensifiers are words that increase the expressive strength within an exclamative, especially with adjectives and adverbs. Very, so, well and even appear frequently to reinforce evaluations and states. Their presence facilitates exclamative reading, especially when combined with an exclamation point. The effect is emphasis, not a formal comparison.

The order of constituents in exclamative sentences is flexible and depends on the expressive focus. In many exclamatives, the intensified element appears at the beginning to mark emphasis. The subject and predicate can be inverted or elided without losing the exclamative value, if the context is clear. Cohesion depends on the clarity of the intention, not on a fixed order.

The exclamation mark is the main graphical mark of exclamatives in writing. It can appear once at the end of the sentence or, in emphatic and informal uses, be repeated, although the standard rule prefers a single occurrence. Exclamatives can coexist with a question mark in hybrid constructions, but that creates another pragmatic value. The choice of punctuation guides the reader's interpretation.

Exclamative sentences express emotions or intense evaluations, marked by intonation and, in writing, by the exclamation point. Interjections, structures with que, como and quanto, and intensifiers are central resources in forming these sentences. Identification depends on the expressive intention of the utterance. Punctuation and lexical choice guide recognition and proper use.