G3. We use 'will' to talk about what people want to do or are willing to do. (e.g. We’ll see you tomorrow. Perhaps dad will lend me the car.)
a. to talk about what people wanted to do or were willing to do. (e.g. We had a terrible night. The baby wouldn’t go to sleep. He kept waking up and crying. Dad wouldn’t lend me the car, so we had to take the train.)
b. to talk about something that we did often in the past because we wanted to do it. (e.g. When they were children they used to spend their holidays at their grandmother’s at the seaside. They would get up early every morning and they’d have a quick breakfast then they would run across the road to the beach.)
G4. We use 'will' in conditionals with 'if' and unless to say what we think will happen in the future or present. (e.g. I’ll give her a call if I can find her number. You won’t get in unless you have a ticket.).
a. We use 'would' to talk about hypotheses, about something which is possible but not real: to talk about the result or effect of a possible situation. (e.g. It would be very expensive to stay in a hotel.)
b. in conditionals with words like 'if' and 'what if'. In these sentences the main verb is usually in the past tense. (e.g. I would give her a call if I could find her number. If I had the money I'd buy a new car. You would lose weight if you took more exercise. If he got a new job he would probably make more money. What if he lost his job. What would happen then?)
c. We use conditionals to give advice. (e.g. Dan will help you if you ask him.) Past tenses are more polite. (e.g. Dan would help you if you asked him.)
idiom 365
Knock On Wood: to wish for good luck
Example: This deal will make you and a contractor happy. Knock on wood!