Depending on the type of sentence, Spanish has a few general intonation patterns.

Statements or declarative sentences have a flat pitch which falls on the final stressed syllable which signals completion and certainty. For example:

Yes/no questions have a rising intonation on the final stressed syllable. This rise in pitch distinguishes them from statements and signals uncertainty, which is especially important since their grammatical structure does not signal their interrogative nature.

These questions start with an interrogative word (qué, quién, cuándo, dónde, etc.) and their intonation is falling, like statements; because there is no need for intonation to clarify their interrogative nature.

Tag questions are words added to the end of a statement to ask for confirmation. The intonation pattern in these sentences consists of a normal statement intonation pattern (falling on the last stressed syllable), followed by a rising pitch on the question tag.

When a statement or question offers a list of items or choices, each item on the list has a rising intonation, except for the final item which has a falling intonation.

In exclamatory sentences that express strong emotions like excitement or surprise, the intonation is falling like a statement. However, the sentence starts on a higher pitch than a statement and descends faster.