Subj/Verb Agreement
Tense
Joining sentences
General Grammar
General Grammar
100

Our school have a computer lab.

Our school has a computer lab

100

Tomorrow I study harder.

Tomorrow I will study harder.

100

I want to go to Santa Monica later, my friends plan to join me there for a seafood dinner.

I want to go to Santa Monica later, and my friends plan to join me there for a seafood dinner.

100

I have one old brother and one young sister.

I have one older brother and one younger sister.

100

After graduate from high school, I went to college.

After graduating from high school, I went to college.

200

Economics are my hardest subject.

Economics is my hardest subject.

200

My roommate watch TV every night.

My roommate watches TV every night.

200

I love L.A., I think it's an expensive city.

I love L.A., but I think it's an expensive city.

200

I'm always agree with you!

I always agree with you!

200

My life changed a lot since I arrived here.

My life has changed a lot since I arrived here.

300

My sisters and my brother is waiting.

My sisters and my brother are waiting.

300

Last night I can't sleep well.

Last night I couldn't sleep well.

300

It's fun to go to the beach, there are lots of things to do there.

It's fun to go to the beach, for there are lots of things to do there.

acceptable: and

300

This is my last week in Los Angeles, so soon I will come back to Brazil.

This is my last week in Los Angeles, so soon I will go back to Brazil.

300

Today is Tuesday, and I leave two weeks later.

Today is Tuesday, and I leave two weeks from today.

400

My family are coming to visit.

My family is coming to visit.

400

My friends not waited for me last night.

My friends didn't wait for me last night.

400

I'm planning to go to Mexico, I need to have ISO sign my I-20.

I'm planning to go to Mexico, so I need to have ISO sign my I-20.

400

I came to L.A. for study English.

I came to L.A. to study English.

400

When I was a kid, I have played a lot of basketball.

When I was a kid, I played a lot of basketball

500

Neither of the boys (play) the piano like their father.

Neither of the boys plays the piano like their father.

500

Do you already eat lunch?

Have you already eaten lunch?

500

I don't like to eat sushi, I don't like to eat Indian food.

I don't like to eat sushi, nor do I like to eat Indian food.

500

I worked receptionist in a hotel for two years.

I worked as a receptionist in a hotel for two years.

500

I was happy to see my friend at the party last Saturday because I didn't seen him in a long time.

I was happy to see my friend at the party last Saturday because I hadn't seen him in a long time.