Sentence pattern refers to the specific sentence construction pattern that is followed so as to form a meaningful sentence. The sentence pattern here is subject+verb.
In the given sentence, 'Leroy' is the subject and 'swims' is the verb.
There is no direct or indirect object in the sentence.
Here, 'Leroy' is the subject and 'swims at 3:00 P.M. everyday' is the predicate.
'Leroy' is the action performer. 'At' is the preposition and 'everyday' is the adverb.
Using that a/n construction is a hint. Unseemly begins with a vowel so you have to use an. It is the only word in the list that does begin with a vowel so you are given a little help with this one.
