He lacked the impetus to study, so he flunked his English class.
Even the campaign in the media had lost some impetus.
one sentence would be I had an impetus to do well on my test.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).
Having others answer questions for you gives you no IMPETUS to learn on your own.
Types of English Sentences
What the English Idiom ‘Measure Up’ Means
Everyday English Idiom - On the Other Hand
Learn the English Idiom 'Out of Sync'
