A Phrasal Verb consists of a verb and a preposition or adverb that modifies or changes the meaning. Give up is such a verb that means stop doing something, which is very different from give. The word or words that modify a verb in this manner can also go under the name particle.
Phrasal verbs can be divided into groups:
These don't take an object.
• They had an argument, but they've made up now.
The object must come after the particle.
• They are looking after their grandchildren.
With some separable verbs, the object must come between the verb and the particle:
• The quality of their work sets them apart from their rivals.
In our phrasal verb dictionary, we classify these as Separable.[obligatory]
With some separable verbs, the object can before or after the particle, though when a pronoun is used it comes before the particle:
• Turn the TV off.
• Turn off the TV.
• Turn it off.
In our phrasal verb dictionary, we classify these as Separable [optional]