According to the Oxford Dictionary (2018), verb is a word that describes what a person or thing
does, or what happens, for example run, sing, grow, occur, seem .
About the verb is not correct:
A
The subjunctive mood is used to express a wish or possibility. This mood has a limited role
in English compared to other languages such as French or Italian, but it's important to use it
properly in formal writing.
The subjunctive form of a verb (apart from to be ) is made from the 3rd person present
singular, without the -s (or -es ) ending. With these verbs, the same forms are used whether or
not the context is the present or the past.
The subjunctive is typically found in rather formal English constructions with that and
with verbs such as suggest, demand, insist, ask, recommend , etc.:
It was suggested that he wait till the next morning.
They demanded that the prime minister explain who authorized the action
B Verbs describe: an action – run, hit, travel ; an event – rain, occur; a situation – be, seem,
have ; a change – become, grow, develop . The basic form of a verb is known as the infinitive .
It‘s always preceded by the word 'to': Molly decided to follow him .
C
The tense of a verb tells you when a person did something or when something existed or
happened. In English, there are three main tenses: the present, the past, and the future.
The past tense (e.g. I was, he talked, we had, they worked ) is also called the past simple
or simple past. As its description implies, it‘s used to talk about things or situations which
happened in the past, that is, before the present time of speaking. Its main uses are as follows:
1st ) to refer to an event or situation which happened once and is now finished;
2nd ) to describe a situation that lasted for a longer time in the past but is now finished; 3rd ) to
talk about an event that happened regularly or repeatedly but is now over.
D
There are two further types of tense: the continuous and the perfect. These tenses are
sometimes referred to as aspects rather than tenses. The term aspect is used in grammar to talk
about the form of a verb that shows, for example, whether the action happens once or
repeatedly, is completed or still continuing.
The continuous tenses (also called progressive tenses) are used to talk about actions that
continue for a period of time. They are formed with the relevant tense of the auxiliary verb to
be and the present participle of the main verb. There are three main continuous tenses: the
present continuous (I am reading ), the past continuous (I was reading ), the future continuous (I
will be reading ).
Perfect tenses are typically used to talk about actions that are completed by the present
or a particular point in the past or future. They are formed with the relevant tense of the
auxiliary verb to have and the past participle of the main verb. There are three main perfect
tenses: the present perfect (I have read ), the past perfect (I had read ), the future perfect (I will
have read ).
E The imperative mood is used in commands and instructions. Imperatives in the affirmative
are formed with the infinitive of the verb (without to ), while negative imperatives are made
with the infinitive together with do + not . The imperative doesn't typically have a subject. It‘s
used to order or ask someone to do something, to offer advice or encouragement, to give
instructions, or to make suggestions: Take the first turn on the left. - Just keep calm and relax .