When a verb carries two weak pronouns, the indirect one comes first and the pair usually contracts with an apostrophe: em + el becomes me'l, et + en becomes te'n. After an infinitive or imperative they attach to the end instead, joined with a hyphen.
Examples
- Que me'l pots deixar un moment?
- Could you lend it to me for a moment?
- Li ho explicaré demà amb calma.
- I'll explain it to him calmly tomorrow.
- Te n'he portat dos, per si de cas.
- I've brought you two of them, just in case.
- No cal dir-l'hi ara mateix.
- There's no need to tell her right now.
The mistake to avoid
Keep the order indirect-then-direct — the reverse of English "give it to me" — and note that li + el/la surfaces as l'hi / la hi.
Where this fits in
Expressió i matís, Catalan C1: Master register, idiomatic expression, and emotional nuance.