Question

We must use solar energy if we wish to conserve our resource Modal auxiliary and state it function ​

Answer 1

Answer:

must

Explanation:

compulsion or obligation

Answer 2

Modal auxiliary- must

Function - it shows obligation

Explanation:

• 'Must' is the modal auxiliary used in the above sentence.
• It is used to show an obligation in the sentence.
• It is also used to give orders and give advice in a firm way.
• 'Must' is used to make recommendations in a soft way.
• It also expresses the necessity to happen something.
• The above sentence the 'must' has been used to indicate obligation.

Learn more:

Modal auxiliary table

https://brainly.in/question/8098224