Looking on the internet deeply has found these results:

Large amount of sand is the most popular phrase on the web.

Large amounts of sand 1407,000 results on the web	Large amount of sand 1763,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You're going around offering large amounts of cash for properties sight unseen. Large amounts of EU funds are wrongly spent. We have given large amount of additional budget support. Scandinavian countries import relatively large amounts of polluted air. So this is not a large amount of money. Obvious modification considering that operators control large amounts of relevant information. I require large amounts of whiskey as a liniment. Whenever he came here, he always brought large amounts of cash.	Scandinavian countries import relatively large amounts of polluted air. You're going around offering large amounts of cash for properties sight unseen. Obvious modification considering that operators control large amounts of relevant information. Large amounts of EU funds are wrongly spent. We have given large amount of additional budget support. So this is not a large amount of money. I require large amounts of whiskey as a liniment. Whenever he came here, he always brought large amounts of cash.

Large amounts of sand

1407,000 results on the web

Large amount of sand

1763,000 results on the web

More popular!

You're going around offering large amounts of cash for properties sight unseen.
Large amounts of EU funds are wrongly spent.
We have given large amount of additional budget support.
Scandinavian countries import relatively large amounts of polluted air.
So this is not a large amount of money.
Obvious modification considering that operators control large amounts of relevant information.
I require large amounts of whiskey as a liniment.
Whenever he came here, he always brought large amounts of cash.

Scandinavian countries import relatively large amounts of polluted air.
You're going around offering large amounts of cash for properties sight unseen.
Obvious modification considering that operators control large amounts of relevant information.
Large amounts of EU funds are wrongly spent.
We have given large amount of additional budget support.
So this is not a large amount of money.
I require large amounts of whiskey as a liniment.
Whenever he came here, he always brought large amounts of cash.