Yes, you can send a sentence with the word ‘is’. For example: “This is a simple sentence.”
The word ‘is’ is a form of the verb ‘to be’, which is used to describe a state of being or to link the subject of a sentence with a predicate. In the example above, ‘is’ connects the subject ‘This’ with the predicate ‘a simple sentence’, indicating what ‘This’ refers to.