Question

How much time he had left on.the planet was very uncertain(make hegetive)​

Answer 1

How much time he had left on the planet wasn't very certain.

$\blue{Additional\: information :}$

$\red{Negative\: and \: affirmative \: sentences :}$

• No, not, never, neither, nor, nothing and none are the seven negative words.
• If the sentence contains one of the above negative words, it's called a negative sentence.
• On the other hand, if it doesn't have any of these words, it's called an affirmative sentence.

$\green{Points\: to\: consider\: when\: changing \:Affirmative\: sentence\: to\: Negative \:sentence :}$

• While changing an affirmative sentence to a negative sentence, use one of the above negative words, but don't change the meaning of the sentence.
• Use antonyms where required.
• Example -

1. Kshitij hates tea.

=> Kshitij do not like tea.

2. Khushali is always late.

=> Khushali is never on time.

Answer 2

$\huge{\underline{\underline{\red{\mathscr{Answer:-}}}}}$

How much time he had left on planet wasn't very uncertain.