TOO and EITHER

Also

USE

"Also" is used in positive sentences to add an agreeing thought.

Examples:

• Jane speaks French. Sam also speaks French.
• I love chocolate. I also love pizza.
• Frank can come with us. Nancy can also come with us.

Too

USE

"Too" is used in positive sentences to add an agreeing thought. It has the same meaning as "also," but its placement within the sentence is different.

Examples:

• Jane speaks French. Sam speaks French too.
• I love chocolate. I love pizza too.
• Frank can come with us. Nancy can come with us too.

PLACEMENT

"Too" usually comes at the end of a clause.

Examples:

• I am Canadian too.
• I can speak French too.
• I am studying economics too.
• If he wants to go too, he should meet us at 8:00.

IMPORTANT

Although "too" is usually placed at the end of a clause, it can sometimes be used with commas after the subject of the sentence. This is usually only done in formal speech.

Examples:

• Mr. Jones wanted the contract. Ms. Jackson, too, thought it was necessary.
• Donna is working on a solution to the problem. I, too, am trying to find a way to resolve the conflict.

Either

USE

"Either" is used in negative sentences to add an agreeing thought.

Examples:

• Jane doesn't speak French. Sam doesn't speak French either.
• I don't love chocolate. I don't love pizza either.
• Frank cannot come with us. Nancy cannot come with us either.

PLACEMENT

"Either" usually comes at the end of a clause.

Examples:

• I cannot speak French either.
• I am not studying economics either.
• I don't want to eat either.
• I didn't like the movie either.

Exercise HERE and HERE.