Slower Or More Slowly?

I HAVE CHECKED MY GRAMMAR BOOKS BEFORE POSTING

Siernan,

I am only an anonymous visitor, but I, too, welcome you. You will

always find reliable answers here from experts, such as the gentleman

who posted the first answer. We non-experts are allowed to reply if

we try to give reasonable answers. I believe that there is a

difference, but -- of course -- I may be mistaken.

*****

Technically speaking, slower is an adjective: slow, slower, slowest.

There were two trains. I could get a ticket only on the slower one.

Technically speaking, slowly is an adverb.

I speak slowly; Tom speaks more slowly than I; Martha speaks

the most slowly of us three.

In everyday conversation, people do not want to take the time that

is necessary to say: Would you speak more slowly, please?

So they just say: Would you speak slower, please?

When you write, you may wish to use the "correct" form, but

in speech, I would guess that most people use the "popular"

form -- except in formal speeches.

Hello Mister Micawber

Thanks you for your speed reponse.

Thanks also Annon for your interested and additions.

This is a great Forum to come and receive help

Adverbs that are identical in form with adjectives take inflections following the same spelling and phonetic:

Early-earlier-earliest

Late-later-latest

Slow-slower-slowest

Several adverbs ending in - ly (quickly, loudly) form comparatives to the same pattern, dropping their adverb forming suffix:

quickly - quicker-quickest

Loudly-louder-loudest