Nerves and insecurity are two of the biggest factors to overcome when interviewing for a role. They can cause you to utter a phrase that, although it may seem harmless, ends up ruining the whole thing.

Adunola Adeshola, a job coach, shared six phrases that can ruin your job interview in a Forbes article. 

1. "I'm not the most qualified person for this job, but..."

You should approach a job interview with this premise in mind — the interviewer wants to talk to you because they think you may be right for the job. During the interview, they'll look for clues both positive (you're the best choice) and negative (you're not the right person).

So if you say "I'm not the most qualified person for this job" as a humility tactic, it will likely backfire. 

"Landing an interview means that the interviewer believes you're qualified enough, so don't give them a reason to think otherwise. Instead, highlight the experiences, stories, and projects you've worked on that showcase your ability to excel in the role," Adeshola wrote.

2. "I don't have a lot of experience in this, but..."

When an interviewer asks you about your skills, it's very tempting to say that you're not very good at it in case you get hired. There are better ways to qualify your skills that avoid using negative language.

"Instead of disqualifying yourself, go straight into the experience and skills you do have. Either show how your experience has prepared you to be an asset or show how your background has equipped you for this new challenge," Adeshola advised.

3. Excessive filler words

Too much umming and ahhing indicates that you lack self-confidence and that you've not prepared enough for the interview. Companies want to hire people who are confident, determined, and proactive. 

Make sure you've researched the company well and that you've rehearsed the most common questions. This will help you feel more confident and relaxed.

4. Being too modest 

It's normal to be afraid to take ownership of corporate accomplishments, but saying "we" instead of "I" diminishes your role and may make the interviewer think you're taking credit for someone else's work and that you rely on others too much.

"Identify your specific results and the impact you delivered and then highlight that in your interviews with confidence," Adeshola explained.

5. "What exactly do you do?"

Companies are looking for passionate people. Passion manifests itself when your values align with those of the company in question. So, again, do some research before the interview and if you like what you read about the company, make that clear by showing the interviewer that you have researched the company well.

6. Avoiding questions or "rambling" 

There are questions that few people like to answer in a job interview. The problem is that if you avoid answering, or give an ambiguous reply, you may come across as irresponsible or untrustworthy.

"To prevent dancing around a question and rambling, get clear on what you bring to the table before the interview and decide on the skills and stories you want to use to back up what you can do. If you are asked a question that catches you off guard, request clarification and lean into the value and skills you know qualify you for the role," Adeshola added.