Modal Verbs: could

Modal Verbs: could

Could can be used with the indefinite infinitive to express past actions. When using could in this way, it usually indicates ability or possibility in the past.

Modal Verbs: need

Modal Verbs: need

Need can function as a modal auxiliary verb when used in certain contexts, indicating a lack of necessity or obligation.Need can also function as a main verb, meaning to require or be necessary.

The Future Perfect in the Past

The Future Perfect in the Past

The Future Perfect in the Past is used to talk about a completed action in the future from a point in the past. It is formed by using would have plus the past participle of the main verb.

What is the Mood of a Verb?

What is the Mood of a Verb?

There are three main mood forms: indicative, imperative, and subjunctive. The indicative mood is used to make a statement or ask a question.   The imperative mood is used to give a command or make a request.   The subjunctive mood is used to express a hypothetical situation, a suggestion, a wish, or a demand.