Vocabulary - Keep, Stay, Remain, Continue & Maintain

Study the vocabulary list and complete the activities below.

1. Keep

Keep can mean to continue doing something or to make something stay in a particular state or condition.

Structure 1: keep + -ing

Use this structure when an action continues.

• Keep practicing and your pronunciation will improve.
• He kept talking even after the teacher asked him to stop.

Structure 2: keep + object + adjective

Use this structure when someone or something causes a condition to continue.

• This jacket keeps me warm in winter.
• Please keep the door closed.

💡 Think: keep = continue an action OR prevent a situation from changing.

2. Stay

Stay means to continue to be in a particular place, situation, or condition.

Structure: stay + adjective / place

• Stay calm and listen to me.
• We stayed at a hotel near the airport.

Stay usually describes the subject's situation. It does not normally take an object before an adjective.

Stay quiet. → You continue to be quiet.
Keep the children quiet. → You make the children continue to be quiet.

💡 Think: stay = continue to be somewhere or in a particular state.

3. Remain

Remain is similar to stay, but it is generally more formal.

Structure: remain + adjective / noun / place expression

• Please remain seated until the plane has stopped.
• The cause of the accident remains unknown.

In everyday conversation, we often prefer stay:

Stay calm. → natural and conversational
Remain calm. → more formal

However, remain is especially common with words such as unknown, unchanged, unclear, silent, open, closed, and stable.

💡 Think: remain = continue to be in the same state, especially in formal contexts.

4. Continue

Continue means to keep doing something or to make an activity or process continue.

Structure: continue + -ing / to + verb

• She continued working after lunch.
• She continued to work after lunch.

Both structures are usually possible with little or no difference in meaning.

Unlike stay and remain, we normally use continue with an action, not directly with an adjective.

✘ Continue quiet.
✔ Stay quiet.
✔ Continue speaking quietly.

💡 Think: continue = an action, activity, or process does not stop.

5. Maintain

Maintain means to keep something at the same level, standard, or condition. It is more formal than keep and is common in professional, academic, and technical contexts.

Structure: maintain + noun

• It is important to maintain a healthy lifestyle.
• The company needs to maintain high standards.

Keep the room clean. → everyday English
Maintain the cleanliness of the room. → formal/technical English

Maintain is particularly common with nouns such as standards, quality, balance, control, contact, relationships, equipment, and stability.

💡 Think: maintain = preserve a condition, level, or standard.

Quick Comparison

KEEP → continue doing something or cause a condition to continue
Keep studying. / Keep the window closed.

STAY → continue to be in a place or condition
Stay here. / Stay positive.

REMAIN → continue to be in a condition, usually more formally
The situation remains unclear.

CONTINUE → an action or process does not stop
Continue working.

MAINTAIN → preserve a level, standard, or condition
Maintain high standards.

ACTIVITIES

Activity 1 – Choose the Best Word

Choose the best option to complete each sentence.

1. Please _____ seated until your number is called.

keep remain maintain

2. Even though the exercise was difficult, Julia _____ trying.

kept stayed remained

3. You need to exercise regularly to _____ a healthy weight.

stay remain maintain

4. I'm going to _____ home tonight because I'm exhausted.

stay keep maintain

5. Despite several investigations, the reason for the problem _____ unknown.

continues remains keeps

Activity 2 – Complete the Sentences

Complete each sentence with keep, stay, remain, continue, or maintain. Change the form of the verb when necessary.

1. The doctor told him to _____ active and exercise regularly. Choose... keep stay remain continue maintain

2. She _____ asking the same question until someone finally answered her. Choose... kept stayed remained continued maintained

3. Although many things have changed, the basic rules have _____ the same. Choose... kept stayed remained continued maintained

4. The company works hard to _____ the quality of its products. Choose... keep stay remain continue maintain

5. After a short break, we _____ discussing the problem. Choose... kept stayed remained continued maintained

Activity 3 – Find and Correct the Mistake

Each sentence contains one incorrect use of keep, stay, remain, continue, or maintain. Rewrite it correctly.

1. Please keep calm while I check what happened.

2. He stayed working even though everyone else had gone home.

3. The company is trying to stay its high standards.

4. The exact cause of the problem keeps unknown.

5. Please continue quiet while the other students are taking the test.