英语结束了口语怎么说

To say that you have finished speaking in English, you could say:
"I'm done speaking in English."
"I've finished speaking in English."
"I've completed my English speech."
If you are ending a conversation with someone, you might also say:
"I think we're done here. Thank you for your time."
"I think we've covered everything. Is there anything else you'd like to add?"
"I think we've reached the end of our conversation. It was nice talking to you."