Sentence examples for cant really from inspiring English sources

"can't really" is correct and commonly used in written English.
It is a shortened form of "cannot really" and is often used in informal or conversational writing. Example: I can't really understand why she was so upset about it. (In this sentence, "can't really" expresses the speaker's inability to fully comprehend the reason for someone else's emotions.) Another example: This restaurant can't really be considered a five-star establishment. (Here, "can't really" is used to express doubt or skepticism about something's classification or quality.).