Omission of E

Words ending in e in the following consonant drop the e before a suffix begging with a vowel:

believe + er =believer

make + ing =making

love +er = lover

take + ing =taking

move +ing =moving

But there are some words that don’t change any e rather it stays like-wise:

dye + ing =dyeing

eye +ing =eyeing or eying  (both are correct)

age + ing =ageing  noted that e remains before except American English

A final e is retained before a suffix beginning with a consonant

engage + ment= engagement

hope +ful=hopeful

manage + ment =management

judge + ment= judgement (UK)  judgment (in America)

The final e is dropped in the following words

argue =argument

due =duly

true  =truly

whole =wholly

Words ending ee don’t drop before suffix:

agree = agreement; agreeing; agreed

free= freely

foresee= foreseeing; foreseeable

seed = seeing; seeded;