一、一般现在时

1. I lovemusic.

2. You arevery smart.

3. He playsthe guitar every day.

4. She readsbooks in her free time.

二、否定句

1. I do not（don't） like coffee.

2. You are not（aren't） going to the party.

3. He does not（doesn't） finish his homework on time.

4. She does not（doesn't） speak Spanish.

三、一般疑问句

DoI livein London？

Areyou a doctor？

Doeshe traveloften？

Doesshe havea cat？

补充说明

动词变形规则：

第一人称单数（I）和第三人称单数（he/she）使用助动词 does，第二人称（you）直接用 do；

否定句在be动词后加 not（如 isn't），实义动词前加 don't（如 doesn't）；

疑问句需将be动词提前（如 Is she...？），实义动词前加 does（如 Does he...？）。以上句子可根据具体语境进一步扩展，例如添加时间状语（every day, sometimes等）或使用其他频度副词（always, rarely等）。