Combining Object Pronouns

LE → SE · lo

Le plus lo becomes se lo — never say le lo.

Se lo doy. — I give it to him.

LE → SE · la

Le plus la becomes se la — always se la.

Se la mando. — I send it to her.

LE → SE · les

Les also becomes se before lo or la.

¿Se lo explicas? — Will you explain it to them?

LE → SE · clarify

Add a + name to clarify who se refers to.

A mi jefe se lo digo. — I tell it to my boss.

LE → SE · los

Se plus los — plural direct objects work the same way.

Se los compro. — I'll buy them for her.

ME/TE · me+lo

First person: me keeps its form before lo or la.

Me lo das, ¿verdad? — You'll give it to me, right?

ME/TE · te+la

Second person: te stays unchanged before la, los, or las.

Te la mando mañana. — I'll send it to you tomorrow.

ME/TE · nos+los

Plural first person: nos stays before los or las.

Nos los explican. — They explain them to us.

ME/TE · infinitive

With an infinitive, attach both pronouns to its end.

Voy a dártelo. — I'm going to give it to you.

ME/TE · negation

With negation, both pronouns come before the verb.

No me lo digas. — Don't tell it to me.