Hi dudes
I don't know if we should omit the letter 'e' from the end of verbs after appending an '-able' suffix to them. Sometimes I have seen that 'e' is not removed from the end of the verb, like:
replace + able = replaceable
change + able = changeable
and sometimes it's removed:
achieve + able = achievable
practice + able = practicable
Do you know what the rule is?