In this case, we just add the suffix. When we add the suffix to the words ending with consonant, nothing changes. For example, sad + <em>ness </em>= sadness or sad +<em>ly </em>= sadly. When we add the suffix to the words ending with vowel, again there is no change, because the suffix begins with a consonant. For example, state + <em>ment </em>= statement or force + <em>ful </em>= forceful.
It was so funny to hear him that we wanted to laugh and cry too
