Locutionary acts - the mere act of producing some linguistic sounds or marks with a certain meaning and reference. Locutionary act refers to any utterances that may contain statements or words about objects.
Susana Nuccetell and Gary Seay defined locutionary acts in 2007 in their book Philosophy of Language: Central Topics
Illocutionary Acts - acting part of the speech act. It carries a directive for the audience.
Two kinds of illocutionary acts:
constantive
performative
Illocutionary acts cateogries:
assertive
declarative
expressive
commissive
directive
asertive - speaker expresses belief about the truth of a proposition
directive - speaker tries to make the addressee perform an action
commissive - speaker commits to future actions
expressive - speaker expresses his/her feelings or emotional reactions
declarative - brings change in an external situation, bring into existence, or cause the state of affairs
perlocutionary acts - speech that produces an effect