The phrase "actually speak it" is correct and usable in written English.
You can use it when referring to the act of verbally communicating something, often in contrast to just understanding or writing it.
Example: "I can read French well, but I struggle to actually speak it in conversation."
Alternatives: "truly articulate it" or "verbalize it".
The minor characters have not been dubbed into English, but actually speak it.
To help curb the corrupt influence of political money, the court has too cleverly maintained for a generation that money doesn't actually speak; it only enables speech.
He always makes references to the source of the music in his songs, he says, and he sings at least a few words in the language from which the music comes even if he doesn't actually speak it.
This technology improves the platform's ability to understand language – the way people actually speak it, that is.
French remains the official language but few outside the small professional class in Niamey actually speak it.
Don't get me wrong, I don't have a problem with Mandarin or people who actually speak it.
Although I can't imagine Turgenev speaking it emphatically, or actually speaking it at all: I can only imagine him thinking it.
The text was handed to the bishops, but instead of actually speaking it Francis engaged the bishops informally, and the prepared expression of compassion, while released by the Vatican press office, was not delivered as written.
The project looks at current and upcoming trends including operation and impact of certificate revocation; non-HTTPS deployment of TLS; Datagram TLS; and applications masquerading as TLS without actually speaking it.
We learn a foreign language by actually speaking it as much as possible, not by reading books and absorbing theories.
"Unless people identify the issues and come out and actually speak about it then things aren't going to change," he said.
