conjecturing

"The movie started at 7 PM. "

"The student's venture into the unfamiliar subject of calculus was a risky one, but she persevered. "

"Clouds were forming interesting shapes in the sky. "

"He is a student of life."

"The effectiveness of that new medicine is still unproven, so doctors are hesitant to prescribe it widely. "

"The constant noise from the construction site made it hard to concentrate on my homework. "

"My daughter's teacher is very kind and helpful. "

"I explained it, but it is pure conjecture whether he understood, or not."

"There is no evidence that anyone was here earlier."

"It was a surprise to find out I owed twice as much as I thought I did."

"My suitcase was packed full of clothes for my summer vacation. "

"The recipe was simply flour, eggs, and milk. "