Which words can be used to add ly directly when adjectives change into adverbs

Which words can be used to add ly directly when adjectives change into adverbs

Add - ly directly at the end of an adjective. For example: Real - really; helpful - fully; caring - carefuly; hopeful - hopefully; slow - slowly; quick - quickly; quiet - fairly. The adjective changes into an adverb by adding - ly, and the change is regular. Please remember the following formula: general straight