crude

"Mandarin Chinese is an uninflected language, meaning words generally don't change form to indicate tense or number. "

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The documents pertaining to my car insurance claim are now all submitted. "

"He tried to conceal the truth about his health."

"The scientist carefully examined the substance to determine its chemical composition. "

"My sister is very helpful, especially when it comes to organizing things. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The untreated water from the well is not safe to drink. "

"The simplicity of her instructions made the project easy to understand. "

"The teacher patiently explained the math problem, and the students were able to understand the steps involved. "

"From my perspective, the best way to improve our team's performance is to have more collaborative meetings. "

"The teacher characterized the student as disruptive in class. "