To + base form
Incorrect : He tried to lifted the box.
Correct : He tried to lift the box.
Note: In every tense the infinitive sign ‘to’ is followed by the base form of a verb.
To + base form
Incorrect : He tried to lifted the box.
Correct : He tried to lift the box.
Note: In every tense the infinitive sign ‘to’ is followed by the base form of a verb.