Declarative and Interrogative Sentences

Summary

In this video lesson, viewers learn about declarative and interrogative sentences. The instructor explains how declarative sentences make statements and end with periods, while interrogative sentences ask questions and end with question marks. The lesson also teaches how to convert declarative sentences into interrogative ones by identifying the verb and adjusting punctuation. Through examples, viewers are guided step-by-step to understand the differences and transformations between these two sentence types.

Takeaways

• 😀 A sentence is a group of words that expresses a complete thought and begins with a capital letter and ends with a punctuation mark.
• 😀 A declarative sentence tells something and ends with a period.
• 😀 An interrogative sentence asks a question and ends with a question mark.
• 😀 The sentence 'The girls won the contest' is a declarative sentence because it tells something and ends with a period.
• 😀 The sentence 'Do you have a good method for doing homework?' is an interrogative sentence because it asks a question and ends with a question mark.
• 😀 To differentiate between declarative and interrogative sentences, pay attention to the punctuation mark: period for declarative, question mark for interrogative.
• 😀 When changing a declarative sentence to an interrogative, look for the verb and adjust the structure accordingly.
• 😀 In declarative sentences with a linking verb (like 'is' or 'are'), start the question with the linking verb (e.g., 'Is she new in class?').
• 😀 In declarative sentences with action verbs (like 'wants' or 'plays'), add 'do' or 'does' to form a question (e.g., 'Does Sasha want a large dog?').
• 😀 When a sentence ends with an action verb that doesn't have an 's' at the end, start the question with 'do' (e.g., 'Do my reading glasses magnify the letters?').
• 😀 To summarize: declarative sentences end with periods, interrogative sentences end with question marks, and you can change declarative sentences into interrogative ones by adjusting the verb and punctuation.

Q & A

What is a sentence?

A sentence is a group of words that expresses a complete thought. It begins with a capital letter and ends with a punctuation mark.

What is a declarative sentence?

A declarative sentence tells something and ends with a period. For example, 'The girls won the contest.'

How can you identify an interrogative sentence?

An interrogative sentence asks a question and ends with a question mark. For example, 'Do you have a good method for doing homework?'

What punctuation mark does a declarative sentence end with?

A declarative sentence ends with a period.

What punctuation mark does an interrogative sentence end with?

An interrogative sentence ends with a question mark.

How can you change a declarative sentence into an interrogative sentence?

To change a declarative sentence into an interrogative one, you often need to rearrange the words, particularly the verb. If there is a linking verb, start the question with that verb. If there is no linking verb, you add 'do' or 'does' at the beginning.

How do you form a question from the sentence 'She is new in class'?

To change 'She is new in class' into an interrogative sentence, start with the linking verb 'is'. The question becomes 'Is she new in class?'

What do you do when the verb in a sentence is not a linking verb?

When the verb is not a linking verb, you start the question with 'do' or 'does'. For example, 'Sasha wants a large dog' becomes 'Does Sasha want a large dog?'

What is the first step in converting a declarative sentence into an interrogative sentence?

The first step is to identify the verb in the declarative sentence and determine if it is a linking verb or not.

What is the difference between 'do' and 'does' when forming a question?

'Do' is used when the subject of the sentence is plural or when the subject is 'I' or 'you'. 'Does' is used when the subject is singular and not 'I' or 'you'.