Questions & Answers about Yo necesito una mesa.
Why do we use una here instead of un?
In Spanish, every noun has a gender. The word for table, mesa, is feminine (which you can often guess because it ends in -a). The word for 'a' or 'an' has to match this gender, so we use the feminine una instead of the masculine un.
Is the word yo strictly necessary in this sentence?
Why does necesito end in an -o?
What is the difference between saying una mesa and la mesa?