Untitled

<!DOCTYPE html>
<html>
    <head>
        <title>Form alinhado</title>
        <meta charset="UTF-8">
    </head>
    <body>
        <form>
            <table>
                <tr>
                  <td>Nome</td>
                  <td><input type="text"></td>
                <tr>
                <tr>
                  <td>Sobrenome</td>
                  <td><input type="text"></td>
                <tr>
                <tr>
                  <td>Matricula</td>
                  <td><input type="text"></td>
                <tr>
                <tr>
                    <td colspan="2"><input type="button" value="Salvar"></td>
                <tr>

            </table>
        </form>
    </body>
</html>