Lesson 14 - Conditional Statements
In this lesson you'll learn how to use conditional sentences in English. You'll also learn how to use verb phrases to be supposed to and used to.
In the vocabulary section, you'll learn the English words for objects that are found in nature.
A short video about landforms is also included.
Mark and Alice see each other as they are leaving from work on Friday. They discuss their plans for the weekend.
Mark: What are you up to this weekend?
Alice: I'm going to the beach on Saturday with some friends, then we're going for dinner, and after that we're going to a concert. I don't have any plans for Sunday yet. What are you doing this weekend?
Mark: I'm going to go hiking to Kennedy Lake in the mountains.
Alice: That's a long hike, but it's worth it. It's a beautiful lake. What are you doing on Sunday? Do you want to go for a coffee?
Mark: Sure. How about we meet at Wick's Café at 11.
Alice: Sounds good. I'll see you there.
Short video about landforms. Crash Course Kids and Crash Course YouTube channels.
A conditional sentence contains a statement that will be true if a certain condition or conditions happen. Conditional sentences are often formed using a group of verbs in English called modal verbs (will, shall, can, may, and must), usually along with the conjuction if. Conditional statements can be simple present, simple past, or past perfect.
The simple present conditional is used to talk about things that happen when cetain conditions are met. The present tense of verbs or the present tense of a modal verb plus infinitive are used in these sentences.
|If I open the door, the cat runs outside.|
|If I open the door, the cat will run outside.|
|If I open the door, the cat can run outside.|
|If I open the door, the cat may run outside.|
|The cat will run outside if I open the door.|
|The cat will run outside if I open the door and say his name.|
|The phone will break if I drop it or throw it.|
Simple Past Conditional
The simple past conditional is used to refer to an imaginary or unreal event and its probable result. For the simple past conditional, would, which is the past tense of will, is used.
|I would agree with you if you were right.|
|The cat would go outside if I opened the door.|
|I would read the book if I had more time.|
|I would read the book if it was interesting and I had more time.|
|I would read the book if it was interesting or I had more time.|
|Snow would be great if it wasn't cold.|
The past conditional perfect is used to indicate that a different action in the past would cause a different outcome than what actually happened. The conditional perfect is formed using would have with the past participle of the verb.
|We would have gone if we had enough money.|
|The cat would have gone outside if I had opened the door.|
|I would have walked to the store if it wasn't raining.|
|Would they have done the dishes if I had asked them?|
|I would not have offered if I didn't mean it.|
|The snow would not have melted if it was a bit colder.|
To Be Supposed To
The verb phrase to be supposed to means that an action is expected or believed to be done by somebody.
|Mary is supposed to study for her exam.|
|We are supposed to paint the house today.|
|You are not supposed to tell anyone.|
|Am I supposed to do it?|
|You were supposed to do it.|
|The teacher was supposed to explain it to us.|
Used to has several different meanings. This section covers each of its uses.
1) To be used to means to be accustomed to, or to be familiar with. For example:
|I am used to the warm weather.|
|I’m used to leaving work late.|
|He is used to the noise of the traffic.|
2) When used to follows a noun or pronoun it means an action was repeated in the past, but does not currently happen. For example:
|I used to drive to work, but now I walk to work.|
|I used to put two teaspoons of sugar in my coffee, but now I don’t put any sugar in.|
|They used to visit almost every weekend, but now that they’ve moved away, we rarely ever see them.|
3) Used to can also be the past tense of the verb phrase use to. For example:
|What did you use to fix it? I used a hammer to fix it.|
|What do they use the apples for? They use them to make apple pie.|
|We used it to store our extra clothes.|
Here are some flashcards to help you learn the vocabulary included in this lesson.
Here is an online quiz to help you learn the English vocabulary introduced in this lesson.