Answer:
The nonstandard word in the sentence below is "attackted"
Explanation:
The simple past, which is a verb tense used to talk about things that happened or existed before now, is formulated by adding -ed to the root form of the verb (or -d if the root form of the verb already ends in an e) in the case of regular verbs. On the other hand, for irregular verbs, the simple past forms are more erratic.
Since the verb "attack" is a regular verb, to formulate its Simple Past it is only necessary to add -ed to the root form of the verb, resulting attacked.
Bearing the above in mind, it could be said that the nonstandard word in the sentence: The navy attackted the submarine is "attackted".
