Question

Nobody could told how the ships

disappeared during their voyage (correct sentence)​

Answer 1

Nobody could tell how the ship's disappeared during their voyage

Answer 2

Answer:

The correct sentence will be  

“Nobody could have told how the ships disappeared during their voyage”.

Here, the second part of the sentence had a past tense “Disappeared”. Here, the modal verb “Could” is followed by the past verb “told”. Usually, the modal verbs in the past form didn’t followed by the past form of the verb. So, to refer something in the past, one should have to use “Past form of the modal verb + have + past participle”. Hence, “Could told” have been changed into “Could have told” to form the correct sentence.