A run-on sentence.
The conquest of outer space is an ongoing endeavour.
If you have ongoing issues with your bank you might contact the banking industry ombudsman
The spinal cord injury caused her chronic ongoing pain and discomfort ; a chronic problem for her .
A feud is an ongoing disagreement between two or more people, families, or countries.
A volatile pickaxe is a kind of pickaxe in runescape.
Yes, the sentence "She will have been reading the book when you get there" is grammatically correct. It describes an action that will be ongoing (reading the book) before another action (you getting there) in the future.
The word "ongoing" doesn't have a past tense as it's not a verb.
A person accused of a crime is not obliged to divulge anything that might be incriminating. A "sentence" for the "word"? - please clarify your question
Ongoing is correct.
Anoxia is low or no oxygen. An example sentence for anoxia is, "The anoxia resulting from the near drowning left him with ongoing brain damage."
ongoing cost
That is a gerund, which is a verb with an -ing ending. It acts as a verb showing ongoing action in a sentence, but requires the help of a linking verb. "He was going to the store." was + going