If she played the piano, she _ your singing. If we could travel anywhere, we would visit Greece.ġ. If he wanted to, he could learn how to sail a boat. If he wanted to, he _ how to sail a boat. Complete the following sentences, using the indicated verbs in the Simple conjugation with the auxiliary could. They will wish they could answer the questions. She suspected they must be living nearby.Ħ. He imagined he would be able to convince us.Ĩ. We knew we should not be able to return home for Christmas.ħ. They realized they could not do all the work in one day.ĥ. I maintained they would not have any difficulty.Ĥ. He believes he will reach the Amazon River in a few days.ģ. He believed he would reach the Amazon River in a few days. For each of the following sentences, change the verb in the mainĬlause from the Simple Past to the Simple Present and change the modal auxiliary from the past to the present. You think we can reach our destination by nightfall.ĥ. Does he not realize we may meet him there?Ĩ. For each of the following sentences, change the verb in the main clause from the Simple Present to the Simple Past and change the modal auxiliary from the present to the past. They could have been playing football yesterday.Ĥ.

Do not use contractions in this exercise. Change the following affirmative statements into negative questions. Change the following affirmative statements into negative statements. They could have been waiting for the bus.Ģ. Change the following affirmative statements into questions. Table of Contents | Alphabetical Index | Back to Chapter 10 EXERCISES for CHAPTER 10.

Modal verbs exercises with answers