How to us futile in an sentence?

He sighed at the futile thoughts. Several futile attempts have been made to draw conclusions as to the intelligence of various birds. His negotiations with Russia proved futile, and after a year's absence he returned to New York.

The definition of futile is something that won't succeed or is unimportant. An example of futile is someone trying to stop a plane that has already left the ground. Having no useful result; ineffectual. ... Incapable of producing results; useless; not successful; not worth attempting.

Explanation:

She sighed at the futile thoughts

Explanation:

.

i dont know sorry, but ik that you need to pay attention in class

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.