Which is correct?

I'm truly grateful for all your help. This is truly one of the most misspelled words. I'm truly sorry. Yours truly, Joanne.

Exception to the rule

truly is made up of true + ly = truly and is an exception to keep the 'e' when adding -ly and consonant suffixes rule.

true (drop the 'e') + ly = truly

We have a couple more words that end in -ue that drop the 'e':

due + ly = duly

argue + ment = argument

The 'e' was probably dropped because it looks cleaner without e, and the 'u' makes the long vowel sound anyway without the 'e' next to it.

Memory tricks

See the end -uly pattern in It's truly hot in July. Please duly note that I'm truly sorry about July.

Word family with true

true/untrue, truly

truth (is without the 'e' ), untruth, truthful/untruthful, truthfully/untruthfully, truthfulness

Sentences

I truly need to know the truth.

A truly magnificent job.

I'm truly grateful for everything.

Truthfully, I'm truly sorry about how the truth came out.

This is a truly remarkable achievement.

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