must

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

"My grandmother taught me how to bake cookies when I was a child. "

"The weather forecast predicted an unpleasant day, with rain and strong winds. "

"The mandatory for the game requires the players to keep the disc above the painted line. "

"The dog's aggressiveness towards strangers made it difficult to take him for walks in the park. "

"Attendance at the meeting is required."

"an aggressive policy, war, person, nation"

"The hospital volunteer group functions as an important auxiliary to the nursing staff. "

"There was a requirement of the government on citizens for paying taxes."

"It frustrates me to do all this work and then lose it all."

"The verbs in sentences like "Do it!" and "Say what you like!" are in the imperative."

"If you miss your curfew, a consequence is having to stay inside and do chores. "