adverb used to emphasize the speaker's belief that what is said is true or likely to happen
I certainly believe that healthcare reform is necessary for our country.
Based on the data we have, we can certainly conclude that the experiment was successful.
I can certainly look into that for you and get back to you with an answer.
Certainly, we can schedule a meeting to discuss your child's progress.
Certainly, I can make a dinner reservation for you at our restaurant.
I can certainly assist you with that request, may I have your account number please?
In a professional context, a writer may use 'certainly' to express confidence in their statements or to indicate agreement with a point made by someone else. For example, 'Certainly, I can incorporate your feedback into the next draft of the article.'
Psychologists may use 'certainly' when providing reassurance or affirmation to their clients. For instance, 'Certainly, it's normal to feel anxious in this situation, but we can work together to develop coping strategies.'
Teachers may use 'certainly' to confirm understanding or agreement with a student's response or request. For example, 'Certainly, you can use the computer lab during lunchtime for your research project.'
Lawyers may use 'certainly' to indicate compliance with a request or to acknowledge a fact presented in court. For instance, 'Certainly, we can provide the requested documents by the end of the week.'
Doctors may use 'certainly' to convey certainty or assurance when discussing treatment options with patients. For example, 'Certainly, we can schedule the surgery for next week if that works for you.'