Your sentence
Se+lo+doy+a+Juan.
Words in this sentence
se
A reflexive or reciprocal pronoun: oneself, himself, herself, itself, yourself; themselves; yourselves; each other; one another; A pronoun used with transitive verbs to create the passive voice; A pronoun used with a verb conjugated in the third-person singular to convey an impersonal meaning; Used to third person subjunctive moods to form an impersonal imperative.; used instead of indirect object pronouns le and les before the direct object pronouns lo, la, los, or las
Pronoun
él
he, him, masculine personal third person subject and disjunctive pronoun (used as a subject and after prepositions); it, masculine non-personal third-person subject and disjunctive pronoun (usually used after prepositions to refer to masculine nouns)
Pronoun
dar
to give, to give out; to hand over; to hit (from any distance); to hit oneself, bump into, crash into; to encounter; to find with effort; to emit; to produce; to perform; to hit upon; to press, activate; …
Verb
a
to; by; at; Used before words referring to people, pets, or personified objects or places that function as direct objects: personal a.
Preposition