You see the lights on in the office very late at night.

Your colleague didn't come to the meeting and you are not sure why.

A mistake happened because nobody checked the numbers.

There was another solution available yesterday.

Someone probably misunderstood the instructions.

You are explaining a possible reason for a delay.

The team finished an extremely difficult project overnight.

Your friend didn't respond to your message.

You are criticizing a decision that caused a problem.

You think someone possibly took the wrong train.

A colleague probably misunderstood the question.

You are saying there was another possible approach.

The office lights were on all night.

You regret not asking a question earlier.

You think someone possibly sent the wrong file.

You believe the team worked very hard.

You believe someone forgot the deadline.

You are criticizing a decision from yesterday.

You think there was another possible strategy.

You are suggesting a possible explanation.