It’s been a long time since I contacted you. √

It’s been a long time since I contacted you. √

I was worried about it. √

I was worry about it. X

I quit my job yesterday. √

I quitted my job yesterday. X

I told you before that it wasn’t right. √

I tell you before that it wasn’t right. X

Did I see you in town yesterday. √

Did I saw you in town yesterday. X

Maggie asked me to tell that she will be late. √

Maggie asked me to tell that she be late. X

How long will you be staying in China? √

How long will you be stay in China? X

I have been working for six months now. √

I have been work for six months now. X

I feel that it is unfair I have to work so many hours. √

I feel that it is unfair I have to working so many hours. X

I can do everything during the day time. √

I can do everything at day time. X

I am sad that no one understands me. √

I am sad that no one understand me. X

My mobile phone is broken so I can’t use it. √

My mobile phone was broken so I can’t use it. X

I began work yesterday. √

I began to work yesterday. X

I cannot find a good way to solve it. √

I cannot find a good ways to solve it. X

Can you take a picture of me? √

Can you took a picture of me? X

I’ve always wanted to be an Interpreter.  √

I’ve always want to be an Interpreter. X

When are you going back home? √

When are you go back home? X

Are you coming to our graduation ceremony? √

Are you come to our graduation ceremony? X

Have you seen John today? √

Have you seeing John today? X

I have been learning English for 3 years. √

I have been learn English for 3 years. X