Barb was beginning to get an inkling or suspicion that Sid was not being totally truthful by the way his face would contort when saying he had been working late again last night and that red lipstick...
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).
When it doesn't have a noun ( subject), a verb (the predicate) , no punctuation, when the first letter isn't capitalized and when it hasn't a complete thought. You need all of this to have a complete...