These are used to modify a verb or an adverb in a sentence. Example: sadly, quietly, strongly, fairly, quickly, carefully, wisely, godly etc.
(i) The children acts carefully
(ii) The teacher speaks wisely
(iii) She answered her mother quickly
These are words use in joining two or more word together to give a correct meaning. E.g. and, but, so, also, although, such as, so, because etc. Example in sentence form
(i) Bola and Kunle arrived late to the party.
(ii) I love to be at the party but my father hindered me.
These are words that show relationship between two words such as noun and pronoun E.g. into, between, behind, before, under, on below, after, across, etc.
(i) My father travels across the sea.
(ii) The Cat is under the table
(iii) The book is on the Shelf