Understanding Five Forms of English Verb:
A word used to denote action e.g. go, run, meet, eat, sit, think etc. There are two types of verbs: transitive and intransitive.
(i) Transitive verbs: These are the verbs which have some sort of impact on their object. For example: He returned the application.
(ii) Intransitive verbs: These are the verbs which have no impact on their objects. For example: He went to school.
Note: Only transitive verbs can be turned into passive form.