French phrase
Je ne le laisserai pas sortir.
Meaning
I won't let the dog out.
When to use it
A firm decision not to let an animal outside. Often used when outside conditions seem unsafe.
Example dialogue
Il y a des voitures dehors. On sort le chien ?
There are cars outside. Shall we let the dog out?
Non. Je ne le laisserai pas sortir.
No. I won't let the dog out.