It means "truly they do not know how to speak Spanish."
To talk.
"Tu puedes hablar" in English means "You can speak."
"Puedo hablar en inglés" translates to "I can speak in English" in English.
To be honest it mean "Not talk to me"
It means "I want to talk"
"No quiero hablar de eso" means "I don't want to talk about that" in English.
"to talk with you more foreward"
Where did you learn to speak Spanish?
It would be helpful to see this in context, but one interpretation for "A que hablar inglés" would be "At that speak English". "Los que habla inglés" means "Those who speak English".
Hablar means to speak or to talk.
he/she would like to talk to her/his friend
"It means "Do you speak Spanish, my love?" in English.