Had better

HAD BETTER

We use had better:

• make recommendations
• desperate hope
• warning

 

Use	Positive Forms 1. = Present   2. = Past   3. = Future	Negative Forms 1. = Present   2. = Past   3. = Future	You can also use:
had better recommendation	1. SHIFT TO "SHOULD" OR "OUGHT TO" People should unplug toasters before they clean them. 2. SHIFT TO "SHOULD HAVE" OR "OUGHT TO HAVE" You should have unplugged the toaster before you tried to clean it. 3. You had better unplug the toaster before you try to clean it.	1. SHIFT TO "SHOULD" OR "OUGHT TO" People shouldn't clean toasters without unplugging them first. 2. SHIFT TO "SHOULD HAVE" OR "OUGHT TO HAVE" You shouldn't have cleaned the toaster without unplugging it first. 3. You had better not clean the toaster until you unplug it.	should, ought to
had better desperate hope, warning	The movie had better end soon. They had better be here before we start dinner. Desperate hopes and warnings usually refer to the near future.	They had better not be late. They had better not forget Tom's birthday gift. Desperate hopes and warnings usually refer to the near future.

"Had better" is often simply pronounced as "better" in spoken English.
 Examples

•  It looks as if it might rain. We‘d better take an umbrella.

• It is a popular restaurant. We‘d better reserve a table.

•  You look ill. You‘d better not to go to work.

• If you don’t pay you phone bill soon, you will be in trouble. You‘d better pay the phone bill soon.

•  Tom is expecting you to phone him You had better phone him soon.

Webgraphy
http://www.rugusavay.com/use-had-better-in-a-sentence/