inconsistency

"All he had to show for four years of attendance at college was a framed piece of paper."

"She mentioned that she had a doctor's appointment this afternoon. "

"the cans and cannots"

"The being in the classroom was quiet today. "

"It’s become a habit of mine to have a cup of coffee after dinner."

"The incompatibility between their personalities made it difficult for them to work together on the school project. "

"The seamstress used a sturdy between to create a precise, even stitch on the thick upholstery fabric. "

"The teacher asked us to write down five propositions for improving our school's recycling program. "

"He is a student of life."

"The current state of the project is that we are behind schedule. "

"His attendance at school was inconsistent; he missed several days in a row, then showed up for a few days straight. "

"The complicated instructions on the new software difficult me from completing the project on time. "