I can give you several sentences.
To touch a sterile field with bare hands would contaminate it.
The bacteria on unwashed hands will contaminate any foodstuffs they touch.
I am not writing a sentence using that word.
contaminate is the root word ther is no root word
I can give you a sentence using the word galaxy.
a sentence using the word endotracheal
This is a sentence using the word aviator.
I am saying a sentence using the word collagen.
This is a sentence using the word monomer. :P
this is a sentence using the word armchair.
i have contaminate the food by putting my dirty hand on the food.
Need a sentence using the word crater?