As Long As vs. So Long As
'As long as' and 'so long as' are conjunctions that confuse learners. In this lesson, we will learn more about them.
What Is Their Main Difference?
The main difference between 'as long as' and 'so long as' is that 'so long as' is that 'so long as' is more informal that 'as long as.'
Meaning
'As long as' and 'so long as' express the meaning 'if.' They introduce conditions, possible results, and requirements.
You can borrow the car
You can borrow the car
Parts of Speech
'As long as' and 'so long as' are conjunctions. They are used to connect clauses.
You are allowed to go
You are allowed to go
Formality
'As long as' is usually more formal than 'so long as.' People often use 'so long as' when they're talking casually. At first, 'so long as' was not considered correct in grammar, but now it is accepted because it is used so much.