I think it is too early to conclude.

I think it is too early to conclude. 
結論を出すには早過ぎると思う。

We can only conclude that they have something to hide. 
彼らには何らかの公にできない事情があるのだと結論せざるを得ない。

Police have now concluded the death was a suicide. 
警察は死因を自殺と断定しました。

He concluded his talk with a proverb. 
彼は話を諺で結んだ。

This concludes the teachers' meeting.
ではこれで職員会議を終了します。

He concluded five insurance contracts today. 
彼は今日保険の契約を5件も成立させた。