'都有' (dōu yǒu) is an adverbial phrase meaning 'all have' or 'everyone has'. It combines the universal quantifier 都 (dōu), which means 'all', 'every', or 'both', with the verb 有 (yǒu), meaning 'to have'. Together, they emphasize that a stated possession, trait, experience, or condition applies to every member of a group — whether people, animals, objects, or abstract concepts. It often follows the subject and precedes the object or complement.

This phrase is commonly used in affirmative statements to express shared attributes or experiences — for example, stating that all family members own phones, or that all students completed homework. It carries a sense of inclusivity and completeness, and it’s neutral in register — appropriate in both casual speech and formal writing. Note that 都有 cannot be used in negative sentences; instead, '都不' (dōu bù) or '都没有' (dōu méi yǒu) is required for negation.