Question

if people live forever,the world_____ be overcrowded .fill suitable model​

Answer 1

Answer:

if the people live forever,the world WILL be overcrowded

Answer 2

The answer is 'will.'

If people live forever, the world will be overcrowded.

Modal Verbs

• Modal verbs refer to the words which express the possibility and probability of an event. It also indicates permissions, obligations, suggestions, and ability.

• The given sentence shows a possibility in the future that might take place if people live forever.

• Therefore, the modal verb 'will' is used. 'Will' is used to signify actions in the future.