To be honest, the question isn't easy. If you don't show who you're speaking with (a interlocutor) - said (say). If a interlocutor is - told (tell). P.S. I am sorry, I badly speak English. I learn English.

They are basically the same, but it is the words you use around said (say) and told (tell) which determine which word you use. Examples. Present tense.....I am going to tell him I am sorry for shouting at him. Past tense......... I told him I was sorry for shouting at him Present............... I am going to say sorry for shouting at him Past.................... I said sorry for shouting at him

Verb Forms: Say - Said - Said - Saying Verb Forms: Tell - Told - Told - Telling I told him that you hate him I said to him that you hate him