Pronunciation: /dʒʌst əˈbaʊt/
adverb modifies a verb, adjective, or another adverb; in this case, 'just about' modifies the verb or adjective it is paired with
A1 I'm just about ready to leave for the party.
A2 She's just about finished her homework.
B1 The project is just about complete.
B2 The train is just about to depart.
C1 The negotiations are just about finalized.
C2 The concert was just about perfect in every way.
preposition shows the relationship between a noun (or pronoun) and other words in a sentence; in this case, 'just about' indicates a close approximation or estimate
A1 I can just about understand basic English.
A2 She's just about finished her homework.
B1 I'm just about ready to leave for the party.
B2 The project is just about complete.
C1 The negotiations are just about to reach a conclusion.
C2 The company is just about to launch its new product line.
formal The project is just about complete and ready for presentation.
informal I'm just about ready to leave for the party.
slang I'm just about done with this assignment, thank goodness.
figurative Her patience is just about running out with all the delays.
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