the word which is spelt incorrectly : maintenace.

‘You look terrific in that dree! ‘ The word ‘terrific’ in the above sentence means -excellent

Someone who is capricious is -known for sudden changes in attitude or behavior

the word which remains the same in its plural form :aircraft.

No

determiner (noun) 1. a person or thing that determines or decides something. 2. GRAMMAR a modifying word that determines the kind of reference a noun or noun group has, for example: a, the, every.

A lost opportunity never returns . ‘here’ lost’ is a -adverb phrase

The saying ‘ enough is enough’ is used when you want-something to stop.

‘He ran with great speed.’ The underlined part of the sentence is a-adverb phrase

‘We must not be late, else we will miss the train’ This is a -compound sentence

By whom am I being called?

Passive: By whom + am + Subject (I) + being + v3 + ?