Is there a possible idiom or phrase in the following context that means satisfactory in all abilities?
For example, lets say someone knows three languages: English, Spanish, and Korean; however, their knowledge of all these languages (including their native language) aren't fluent, but not poor either, just satisfactory.
When they're asked, "What language do you speak?"; instead of answering "I speak English, Spanish, and Korean, but they're all just satisfactory", or "I speak English, Spanish, and Korean, but none of them are that great", is there an idiom or phrase that could replace that, to mean something along the lines of not any of my languages are fluent, just satisfactory? or all of my languages are just satisfactory?