... Memorandum → memoranda Page of COUNTABLE NOUNS: • • Can take both singular and plural verbs E.g: The student is studying in the library (singular verb) The students are studying in the library (plural ... nouns ending in –s: crossroads, means, series, species, etc E.g: English is considered as a means of communication in the world There are many kinds of means of transport in Ho Chi Minh City ... grazing in the field Some sheep are grazing in the field The words aircraft, spacecraft, hovercraft E.g: A hovercraft was approaching the port Three hovercraft were approaching the port Some nouns...