As/so long as

Pro Tip 1/3

Conditional Agreement

Use when agreeing but expecting something in return or under certain conditions.

I'll lend you the book as long as you return it next week.

Pro Tip 2/3

Implies Trust

Signals trust that the other person will meet the conditions set.

You can use my phone as long as you don't drop it.

Pro Tip 3/3

Not a Guarantee

The outcome is uncertain but depends on the condition being met.

We'll reach on time as long as there's no traffic jam.