1 adj Something that is necessary is needed in order for something else to happen. oft it v-link ADJ to-inf (Antonym: unnecessary) I kept the engine running because it might be necessary to leave fast, We will do whatever is necessary to stop them, Is that really necessary?, Make the necessary arrangements. At the start of a sentence, use a comma after "if necessary", "if needed", "when required", "where needed", etc. Normally, we don't need a comma before "if necessary", "when needed", etc. in mid-sentence or at the end of the sentence. If you say that something will happen if necessary, when necessary, or where necessary, you mean that it will happen if it is necessary, when it is necessary, or where it is necessary. If necessary, the airship can stay up there for days to keep out of danger. phrase. If you say that something will happen if necessary, when necessary, or where necessary, you mean that it will happen if it is necessary, when it is necessary, or where it is necessary. If necessary, the airship can stay up there for days to keep out of danger. Opinion Columnist. On Sunday, CNN's Dana Bash asked Representative Pramila Jayapal why so many progressive women have been silent about the extensive reports of widespread rape and sexual Vay Tiền Nhanh Chỉ Cần Cmnd.

if necessary or when necessary