As Long As vs. While
The conjunctions 'As long as' and 'while' are used to express time. In this lesson, we will learn the similarities and differences.
What Is Their Main Difference?
The main difference 'as long as' and 'while' is that 'as long as' expresses shorter periods of time than 'while.'
Meaning
'As long as' and 'while' can be used to express time. However, there is a small distinction that requires your attention. 'As long as' compares two situations that occur in similar duration. 'While' expresses two long actions or situations that happen at the same time.
I took a nap
She cleaned the house
Parts of Speech
'While' is a conjunctive adverb. It is used to connect clauses. Have a look:
We helped with the lights
I grabbed a few towels
'While' can also be used as a noun. In this case, we cannot use 'while' alone and it is often used to indicate time. It is often accompanied by 'in a...,' 'once in a...,' 'for a...,' 'a...,' and 'worth your...'.
I will keep them busy
The update might take
He came back to me
'As long as' can be used as a preposition and an adverb.
You can stay here
His shower was