I also recommend this wonderful video by Khan Academy.
You must submit the application by Friday. She can speak play several musical instruments. What are modal verbs? According to Merriam-Webster, a modal verb is a verb (such as can, could, shall, should, ought to, will, or would) that is usually used with another verb to express ideas such as possibility, necessity, and permission. Practice modal verbs with conversation questions, watch video explanation and study example sentences.