USA Today: Yes, pneumonia can be contagious. But here's why it depends on the form. For the second half of the 19th century and the early part of the 20th, pneumonia was a leading cause of death that killed hundreds of thousands of people.

Understanding the Context

Sir William Osler – usually considered the ... Yes, pneumonia can be contagious. But here's why it depends on the form. The meaning of DOES is present tense third-person singular of do; plural of doe.

Key Insights

DOES definition: a plural of doe. See examples of does used in a sentence. Stop guessing between do vs. does! Learn the easy rules for questions, negatives, and emphasis with our 10-second subject-verb chart.

Final Thoughts

DOES definition: 1. he/she/it form of do 2. he/she/it form of do 3. present simple of do, used with he/she/it. Learn more. Both do and does are present tense forms of the verb do.

Which is the correct form to use depends on the subject of your sentence. In this article, we’ll explain the difference between do and does, cover when and how to use each form, and provide examples of how they’re used in sentences.