Here is the Contact Form 7 template form for the Contact page.
<div class="row">
<div class="col-lg-6">
<div class="form-group">
[text* your-name placeholder "Name*"]
</div>
</div>
<div class="col-lg-6">
<div class="form-group">
[email* your-email class:form-control placeholder "Email*"]
</div>
</div>
<div class="col-lg-6">
<div class="form-group">
[number* your-number class:form-control placeholder "Number*"]
</div>
</div>
<div class="col-lg-6">
<div class="form-group">
[text* your-subject class:form-control placeholder "Subject*"]
</div>
</div>
<div class="col-lg-12">
<div class="form-group v1">
[textarea your-message class:form-control rows:10 placeholder "Your Message"]
</div>
</div>
<div class="col-lg-12">
<button type="submit" class="btn style7 d-block w-100">Send Message</button>
</div>
</div>