We have to sell it to her.

Question

19. Tenemos que vendér BLANK.
20. BLANK tenemos que vender.

Answer 1

You are working with Direct Object Pronouns (me, te, lo, la, nos, os, los, las) and Indirect Object Pronouns (me, te, le, nos, os, les)

When both are in a sentence, the Indirect comes before the Direct BUT when le or les is followed by lo, la, los, or las they become "se."

Usually they go before the conjugated verb BUT you have a choice with an infinitive or gerund (-ndo form). Then they can either go in the usual position (before the conjugated verb) OR be attached to the infinitive or gerund, remembering to add an accent mark where you want to HEAR the stress.

Ordinarily we do NOT do the homework for you, but help you with what YOU DO. However, in this case, I will do the example for you. Then, if you are wise, you will try others, post them here, and have me check them for you.

This is an infinitive so you have a choice; either (a) or (b)
a. Tenemos que vendérselo. (to her is le and since I don't know what it is, I'll use the masculine singular lo. Note which comes first, what happens to it (le = se) and the accent mark.

b. Se lo tenemos que vender.

NOTE: Since you have no idea whether "se" stands for the singular "le" or the plural "les" you might add this at the end to explain it = a ella

I'll flag this and come back later to see if you have additional questions.

Sra

Answer 2

Se lo tenemos que vender a ella.
Le tenemos que vender a ella.

BOTH ARE CORRECT
SUERTE!!!

Answer 3

Tanisha's first is OK but the 2nd is incorrect.

Sra