Before vs. Beforehand
This time, we're gonna delve into the differences between 'before' and 'beforehand'. Are you ready? Still interested in learning? Brilliant.
What Is Their Main Difference?
'Before' and 'beforehand' are different in both parts of speech and meaning. 'Before' can be an adverb, a preposition, and a conjunction, whereas, 'beforehand' is an adverb.
Differences
'Before' can have several different functions. It means 'previous to', 'sooner than' and 'in front of' something/someone. It can be a preposition of time and place, an adverb of time, and a subordinating conjunction, connecting a dependent clause to an independent one. Below, there are examples for you:
Here, 'before' is a subordinating conjunction.
He could've asked my opinion
Here, 'before' is again a subordinating conjunction.
Here, 'before' is a preposition of time.
Kneel
Here, 'before' is a preposition of place.
Don't worry, Harry has done it
Here, 'before' is an adverb of time.
'Beforehand' can only function as an adverb. It is used to indicated something did/did not happen in advance. Look:
When making dinner, remember to call me
Every time she had ballet class, she used to come down here
Similarities
They can both be adverbs. Look:
Couldn't you tell me
They were so religious that they always prayed
Are They Interchangeable?
Since these words have completely different parts of speech, if we use them interchangeably, the whole sentence will be grammatically incorrect. 'Before' can be a preposition, an adverb, a subordinating conjunction, whereas, 'beforehand' can only be an adverb. Compare:
✓ It's better to think about the pros and cons
X It's better to think about the pros and cons
As you can see here, the sentence is grammatically wrong.