There was a clock at the top right corner of the screen.

[tufguy]

I was taking an online test. There was a clock at the top right corner of the screen. I had two hours to complete the test. The clock was ticking (on the screen). Time was getting reduced. There were only five minutes left when I finished my test.

Please check my sentences.

 

[GoesStation]

If you feel the need to tell the reader which clock you mean, just put that information into the sentence: The clock on the screen was ticking.

Time can't be reduced. Remaining time can.

The rest of the sentences are well written.

 

[tufguy]

If you feel the need to tell the reader which clock you mean, just put that information into the sentence: The clock on the screen was ticking.

Time can't be reduced. Remaining time can.

The rest of the sentences are well written.

Okay, so we can say "Remaining time was getting reduced". Am I correct?

Can I say "The time was running"?

 

[GoesStation]

Okay, so we can say (1) "Remaining time was getting reduced". Am I correct?

Can I say (2) "The time was running"?

Sentence 1 is not natural. You might be getting hungry as the morning progresses, but time can't get reduced. You probably want the idiom My time was running out.

Sentence 2 isn't meaningful.

 

[Tarheel]

Perhaps:

There was a clock on the screen keeping track of the time remaining.