Here is the Contact Form 7 template and source code for the Contact form.
To edit this form go to Contact> then edit your targeted form
<div id="contactForm">
<div class="row">
<div class="col-lg-12 col-md-12">
<div class="form-group">
[text* cn-name class:form-control placeholder "Name"]
</div>
</div>
<div class="col-lg-12 col-md-12">
<div class="form-group">
[email* cn-email class:form-control placeholder "Email"]
</div>
</div>
<div class="col-lg-12 col-md-6">
<div class="form-group">
[text* cn-phone class:form-control placeholder "Phone"]
</div>
</div>
<div class="col-lg-12 col-md-6">
<div class="form-group">
[text* cn-subject class:form-control placeholder "Subject"]
</div>
</div>
<div class="col-lg-12 col-md-12">
<div class="form-group">
[textarea* cn-message id:message class:form-control 30x5 placeholder "Your Message" ]
</div>
</div>
<div>
[acceptance gdpr class:gdpr-term ] By checking this, you agree to our <a href="//www.envytheme.com/tf-wp-demo/startp/terms-condition">Terms</a> and <a href="//www.envytheme.com/tf-wp-demo/startp/privacy-policy-2">Privacy policy</a>.
[/acceptance]
</div>
<div class="col-lg-12 col-md-12">
[submit class:btn class:btn-primary "Send Message"]
<div id="msgSubmit" class="h3 text-center hidden"></div>
<div class="clearfix"></div>
</div>
</div>
</div>