Sentence examples for It sucks from inspiring English sources

The phrase "It sucks" is not considered correct or appropriate for use in written English.
It is considered too informal and colloquial to be used in any formal writing. Instead, you could use a stronger phrase such as, "It is extremely disappointing," or, "It is very unsatisfactory" to make the same point more clearly and eloquently. For example, "The service at this restaurant was terrible- it is very unsatisfactory."