I'm not certain about the best route to take, can you give me directions?
Certain foods can trigger allergies, so it's important to be aware of your diet.
My boss is certain that our team can meet the deadline.
I am certain that I locked the door before leaving the house.
He was certain that he had lost his wallet, but it turned up in his jacket pocket.
The doctor is certain that the patient will recover soon.
She is certain she saw a shooting star last night.
I have a certain feeling that we have met before.
He is certain that he can finish the project on time.
I am certain that I left my keys on the kitchen counter.
It's certain that we'll face some challenges along the way, but nothing we can't handle.
I'm certain that I left my phone on the kitchen table this morning.
The doctor was certain that the patient would recover fully from the surgery.
I have a certain amount of respect for people who speak multiple languages fluently.
It's certain that we'll have a great time on our vacation, but we need to plan everything in advance.
She had a certain charm and confidence that immediately drew people to her.
The new policy is certain to cause controversy among the employees, given its strict rules and regulations.
I am fairly certain that we will have to postpone our trip due to the unfavorable weather forecast.
He had certain reservations about accepting the job offer, but ultimately decided to take it.
It's a certain fact that regular exercise can have a positive impact on both physical and mental health.
After conducting a thorough investigation, the police were certain of the suspect's guilt.
It is certain that further research is required to fully understand this phenomenon.
She had a certain charm that made people immediately warm to her.
Despite certain reservations, she decided to take the job offer.
The concert was a certain success, with the audience giving a standing ovation.
I am certain that his intentions were pure, despite his actions being misguided.
Certain foods can have a profound impact on our mood and energy levels, so it is important to be mindful of what we eat.
There is a certain charm to the old, rustic buildings in this city that cannot be replicated anywhere else.
It is certain that if we do not take action now, the consequences will be dire.
I am certain that the new hire will be a valuable addition to the team, given his impressive track record.