Sentence examples for it's certainly normal from inspiring English sources

Smoking isn't healthy, but it's certainly normal; can we also expect our movie heroes to avoid red meat and stick with low-fat fare?

I immediately said to Magda, 'Daniel fell down awkwardly, it's certainly not normal'".

It's not precisely an out-of-body experience -- because a binge is all about the visceral taste and texture of food on your fingers and on your tongue and sliding down your throat -- but it's certainly not a normal state of mind.

Well, it's certainly not true by any normal standards.

It's certainly possible.

It's certainly convenient.

It's certainly pretty.

It's certainly motivating.

It's certainly disconcerting.

It's certainly enormous.

It's certainly trying.