i created this form:

writing this XML layout:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    <LinearLayout
        android:id="@+id/fields"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_marginTop="20dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp">
        <LinearLayout
            android:id="@+id/layoutCountry"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <TextView
                android:id="@+id/textCountry"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textSize="18sp"
                android:text="@string/text_country"
                android:textColor="@color/black" />
            <Spinner
                android:id="@+id/spinnerCountry"
                android:layout_height="wrap_content"
                android:layout_width="0dp"
                android:layout_weight="1.5"
                android:textSize="18sp"
                android:inputType="text"
                android:textColor="@color/black" />
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <EditText
                android:id="@+id/editCustom"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textSize="18sp"
                android:inputType="text"
                android:textColor="@color/black" />
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <TextView
                android:id="@+id/city"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textSize="18sp"
                android:text="@string/text_city"
                android:textColor="@color/black" />
            <EditText
                android:id="@+id/editCity"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1.5"
                android:textSize="18sp"
                android:inputType="text"
                android:textColor="@color/black" />
         </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <TextView
                android:id="@+id/postal"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textSize="18sp"
                android:text="@string/text_postal"
                android:textColor="@color/black" />
            <EditText
                android:id="@+id/editPostal"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1.5"
                android:textSize="18sp"
                android:inputType="text"
                android:textColor="@color/black" />
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <TextView
                android:id="@+id/textAddress"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textSize="18sp"
                android:text="@string/text_address"
                android:textColor="@color/black" />
            <EditText
                android:id="@+id/editAddress"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1.5"
                android:textSize="18sp"
                android:inputType="text"
                android:textColor="@color/black" />
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <TextView
                android:id="@+id/textTel"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textSize="18sp"
                android:text="@string/text_tel"
                android:textColor="@color/black" />
            <EditText
                android:id="@+id/editTel"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1.5"
                android:textSize="18sp"
                android:inputType="text"
                android:textColor="@color/black" />
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
            <TextView
                android:id="@+id/textEmail"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:textSize="18sp"
                android:text="@string/email"
                android:textColor="@color/black" />
            <EditText
                android:id="@+id/editEmail"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1.5"
                android:textSize="18sp"
                android:inputType="textEmailAddress"
                android:textColor="@color/black" />
        </LinearLayout>
    </LinearLayout>
</ScrollView>
As you can see the second EditText is too long and i would align it to the other fields, like this:

I tried to use there a RelativeLayout and do some changes with LinearLayout but i'm getting crazy because i can't reach my purpose. I am not so expert about XML layouts... :(
 
     
     
     
     
    