Word
No tengo ninguna duda.
Meaning
I have no doubt.
Part of speech
sentence
Pronunciation
Course
Questions & Answers about No tengo ninguna duda.
This lesson is about doubt triggering the subjunctive. If I expanded this to say "I have no doubt that...", would I use the subjunctive?
No, you would use the indicative. The phrase no tengo ninguna duda de que expresses certainty, not doubt. Because you are certain, you use the normal indicative mood. For example: No tengo ninguna duda de que ella viene (I have no doubt that she is coming). You only use the subjunctive when there is actual doubt, like Dudo que venga (I doubt she is coming).
Why do we need both no and ninguna in the same sentence?
Spanish requires double negatives. When a negative word like ninguna (none/not any) comes after the verb, you must put no before the verb. In English this translates literally to "I do not have no doubt," but in Spanish it is perfectly correct and natural.
Why is the word ninguna instead of ningún?
The word for "none" or "not any" changes to match the gender of the noun it describes. Because duda is a feminine noun, you use the feminine form ninguna. You would use ningún before a masculine singular noun, like in no tengo ningún problema.