She is un-forgetting the memories of her childhood.

I un-forgot to bring my umbrella.

She has un-forgotten the memories of her childhood.

She never un-forgets her keys.

I will un-forget this moment for the rest of my life.

She behaved un-Islamically by drinking alcohol.

The un-ionized molecule is neutral and does not carry an electric charge.

She always keeps her house un-dirty.

I am un-deadstocking my sneaker collection.

He un-deadstocks his sneakers every month.