Answer:
Verbs
Explanation:
According to Reed-Kellogg's sentence diagramming method of teaching and learning grammar;
The main line of the diagram (in this figure there are two main lines) shows the head noun of the subject divided from the predicate by vertical line that run through the horizontal (main line). After the verb (of the predicate) a short vertical line touching the horizontal line divided verb from the head noun of the direct object.
In this diagram before F and B there are vertical lines running through horizontal lines which show that F and B are verbs according to Reed-Kellogg's sentence diagramming method.
There are also rules for representing nouns, pronouns, adverbs, adjectives, modifiers, qualifiers and so on.
