I want to express that something prevents somebody to do an activity. Is a proper way to use keep from? Is there another suitable synonym?
When I use it in the sentence, is it correct?
Nothing had kept you from uploading before the deadline came.
I am still improving my English, benevolence please :)
Your example sentence is actually really good. The only thing I would change would be using the verb "to arrive" instead of "to come", like so:
Nothing had kept you from uploading before the deadline arrived.
I'll note, however, that if you want to say that something prevented someone from doing something else, then the example you have actually represents the opposite, that nothing prevented this person from doing something. You can simply replace "Nothing" with whatever did prevent that person.
But yes, "keep from" is the proper verb to use, and you're using it correctly.
