We started preparing for the initiation of a new project.

We held a meeting to initiate a new project.

The opening day of the new semester is April 1st.

The new university will open next week.

When spring comes, the forest begins to come into leaf.

When spring comes, the trees in the forest come into leaf.

He cautioned not to speak ill of others, saying, 'Illness enters by the mouth, and disaster does not come out of it.'

He was singing to himself alone in the room.

I often quarrel with him.

He was walking while whistling.