Are these correct? How do I know which one to use?
1. Did you know you can return this item?
2. Do you know you can return this item?
3. Did you know that this car can brake down very easily?
4. Do you know that this car can brake down very easily?
5. Did you know that if you buy the extended warranty for this car, we'll cover everything for you?
6. Do you know that if you buy the extended warranty for this car, we'll cover everything for you?
What do these mean? Does it matter if I use 'do' /w 'will or 'did /w 'would'? or 'do /w would' or 'did /w will'?
7. Do you know that if you buy the extended warranty for this car, we will cover everything for you?
8. Do you know that if you buy the extended warranty for this car, we would cover everything for you?
9. Did you know that if you buy the extended warranty for this car, we would cover everything for you?
10. Did you know that if you buy the extended warranty for this car, we will cover everything for you?
What does #11 and #12 mean?
11. Do you know that this car can brake down very easily?
12. Do you know this car can brake down very easily?
1. Did you know you can return this item?
2. Do you know you can return this item?
3. Did you know that this car can brake down very easily?
4. Do you know that this car can brake down very easily?
5. Did you know that if you buy the extended warranty for this car, we'll cover everything for you?
6. Do you know that if you buy the extended warranty for this car, we'll cover everything for you?
What do these mean? Does it matter if I use 'do' /w 'will or 'did /w 'would'? or 'do /w would' or 'did /w will'?
7. Do you know that if you buy the extended warranty for this car, we will cover everything for you?
8. Do you know that if you buy the extended warranty for this car, we would cover everything for you?
9. Did you know that if you buy the extended warranty for this car, we would cover everything for you?
10. Did you know that if you buy the extended warranty for this car, we will cover everything for you?
What does #11 and #12 mean?
11. Do you know that this car can brake down very easily?
12. Do you know this car can brake down very easily?