BE is a full verb when it combines with adjectives and nouns; HAVE is a full verb when it is used to mean 'possess', etc.; DO is a full verbBE is a full verb when it combines with adjectives and nouns; HAVE is a full verb when it is used to mean 'possess', etc.; DO is a full verbBE is a full verb when it combines with adjectives and nouns; HAVE is a full verb when it is used to mean 'possess', etc.; DO is a full verb