A phrasal verb is a verb followed by a preposition or an adverb; the combination
creates a meaning different from the original verb alone.
Transitive and intransitive phrasal verbs :
Some phrasal verbs are transitive. (A transitive verb always has an object.)
Example : I made up an excuse. ('Excuse' is the object of the verb.)
Some phrasal verbs are intrasitive . (An intransitive verb does not have an object.)
Example : My car broke down.
Separable or inseparable phrasal verbs :
Some transitive phrasal verbs are separable. (The object is between the verb and the preposition.)
Some transitive phrasal verbs are inseparable. (The object is placed after the preposition.)
Some transitive phrasal verbs can take an object in both places.
Example : I picked up the book.
I picked the book up.