Learn Swedish: Du skulle slippa limma tranan om du hade vikit rätt. - You wouldn't have to glue the crane if you had folded correctly.

This is a mixed unreal conditional. The condition happened in the past (you didn't fold it correctly back then, so we use the past perfect hade vikit), but the result applies to the present (you wouldn't have to glue it right now, so we use skulle + present infinitive slippa).

The translation says "wouldn't have to," but there is no inte in the Swedish sentence. Why?

The Swedish verb slippa means to avoid doing or to be spared from doing something. Because the idea of getting out of an obligation is built directly into the verb, you don't need to add a negative word like inte.

Why is there no att before limma?

When slippa is followed by another verb, it almost always takes the bare infinitive without att. Similar to how you use auxiliary verbs like kan or vill, you directly attach the next verb, making it slippa limma.

What kind of verb is vikit?

It is the supine form of vika (to fold). It is a strong verb, meaning it changes its core vowel instead of using regular endings: att vika (infinitive), vek (past tense), and har/hade vikit (supine).