Grammar Teacher

We use “had better” plus the infinitive without “to”  to give advice. Although “had” is the past form of “have”, we use “had better” to give advice about the present or future. You’d better tell her everything. I’d better get back to work. We’d better meet early. The negative form is “had better not”. You’d better not say anything. I’d…

https://englishgrammarsecrets.com/business-english-grammar-32-master-more-uses-of-make/business-english-grammar/

Here’s a nice little quiz on the differences in BRITISH English between the Past Simple and the Present Perfect. Remember that in American English sometimes both can be used. https://englishgrammarsecrets.com/past-simple-orpresent-perfect/business-english-grammar/