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Irregular verb (past tense) buy

A1

Infinitive

buy

[baɪ]

Past simple

bought

[bɔːt]

Past participle

bought

boughten *

[bɔːt]
[bɔːtn]


* This form is obsolete or used only in particular cases or dialects.




Related irregular verbs:

Infinitive

Past simple

Past participle

abought

abought

overbought

overbought

underbought

underbought


Conjugation of the irregular verb [buy]

Conjugation is the creation of derived forms of a verb from its principal parts by inflection (alteration of form according to rules of grammar). For instance, the verb "break" can be conjugated to form the words break, breaks, broke, broken and breaking.


The term conjugation is applied only to the inflection of verbs, and not of other parts of speech (inflection of nouns and adjectives is known as declension). Also it is often restricted to denoting the formation of finite forms of a verb – these may be referred to as conjugated forms, as opposed to non-finite forms, such as the infinitive or gerund, which tend not to be marked for most of the grammatical categories.


Conjugation is also the traditional name for a group of verbs that share a similar conjugation pattern in a particular language (a verb class). A verb that does not follow all of the standard conjugation patterns of the language is said to be an irregular verb.

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Present

I
buy 
you
buy 
he/she/it
buys 
we
buy 
you
buy 
they
buy 

Present Continuous

I
am buying 
you
are buying 
he/she/it
is buying 
we
are buying 
you
are buying 
they
are buying 

Past simple

I
bought 
you
bought 
he/she/it
bought 
we
bought 
you
bought 
they
bought 

Past Continuous

I
was buying 
you
were buying 
he/she/it
was buying 
we
were buying 
you
were buying 
they
were buying 

Present perfect

I
have bought 
you
have bought 
he/she/it
has bought 
we
have bought 
you
have bought 
they
have bought 

Present perfect continuous

I
have been buying 
you
have been buying 
he/she/it
has been buying 
we
have been buying 
you
have been buying 
they
have been buying 

Past perfect

I
had bought 
you
had bought 
he/she/it
had bought 
we
had bought 
you
had bought 
they
had bought 

Past perfect continuous

I
had been buying 
you
had been buying 
he/she/it
had been buying 
we
had been buying 
you
had been buying 
they
had been buying 

Future

I
will buy 
you
will buy 
he/she/it
will buy 
we
will buy 
you
will buy 
they
will buy 

Future continuous

I
will be buying 
you
will be buying 
he/she/it
will be buying 
we
will be buying 
you
will be buying 
they
will be buying 

Future perfect

I
will have bought 
you
will have bought 
he/she/it
will have bought 
we
will have bought 
you
will have bought 
they
will have bought 

Future perfect continuous

I
will have been buying 
you
will have been buying 
he/she/it
will have been buying 
we
will have been buying 
you
will have been buying 
they
will have been buying 

Conditional of the irregular verb [buy]

Causality (also referred to as causation or cause and effect) is influence by which one event, process, state or object (a cause) contributes to the production of another event, process, state or object (an effect) where the cause is partly responsible for the effect, and the effect is partly dependent on the cause. In general, a process has many causes, which are also said to be causal factors for it, and all lie in its past. An effect can in turn be a cause of, or causal factor for, many other effects, which all lie in its future.


The conditional mood (abbreviated cond) is a grammatical mood used in conditional sentences to express a proposition whose validity is dependent on some condition, possibly counterfactual.


English does not have an inflective (morphological) conditional mood, except in as much as the modal verbs could, might, should and would may in some contexts be regarded as conditional forms of can, may, shall and will respectively. What is called the English conditional mood (or just the conditional) is formed periphrastically using the modal verb would in combination with the bare infinitive of the following verb. (Occasionally should is used in place of would with a first person subject – see shall and will. Also the aforementioned modal verbs could, might and should may replace would in order to express appropriate modality in addition to conditionality.)

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Conditional present

I
would buy 
you
would buy 
he/she/it
would buy 
we
would buy 
you
would buy 
they
would buy 

Conditional present progressive

I
would be buying 
you
would be buying 
he/she/it
would be buying 
we
would be buying 
you
would be buying 
they
would be buying 

Conditional perfect

I
would have bought 
you
would have bought 
he/she/it
would have bought 
we
would have bought 
you
would have bought 
they
would have bought 

Conditional perfect progressive

I
would have been buying 
you
would have been buying 
he/she/it
would have been buying 
we
would have been buying 
you
would have been buying 
they
would have been buying 

Subjunktiv of the irregular verb [buy]

The subjunctive is a grammatical mood, a feature of the utterance that indicates the speaker's attitude toward it. Subjunctive forms of verbs are typically used to express various states of unreality such as: wish, emotion, possibility, judgement, opinion, obligation, or action that has not yet occurred; the precise situations in which they are used vary from language to language. The subjunctive is one of the irrealis moods, which refer to what is not necessarily real. It is often contrasted with the indicative, a realis mood which is used principally to indicate that something is a statement of fact.


Subjunctives occur most often, although not exclusively, in subordinate clauses, particularly that-clauses. Examples of the subjunctive in English are found in the sentences "I suggest that you be careful" and "It is important that she stay by your side."


The subjunctive mood in English is a clause type used in some contexts which describe non-actual possibilities, e.g. "It's crucial that you be here" and "It's crucial that he arrive early." In English, the subjunctive is syntactic rather than inflectional, since there is no specifically subjunctive verb form. Rather, subjunctive clauses recruit the bare form of the verb which is also used in a variety of other constructions.

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Present subjunctive

I
buy 
you
buy 
he/she/it
buy 
we
buy 
you
buy 
they
buy 

Past subjunctive

I
bought 
you
bought 
he/she/it
bought 
we
bought 
you
bought 
they
bought 

Past perfect subjunctive

I
had bought 
you
had bought 
he/she/it
had bought 
we
had bought 
you
had bought 
they
had bought 

Imperativ of the irregular verb [buy]

The imperative mood is a grammatical mood that forms a command or request.

An example of a verb used in the imperative mood is the English phrase "Go." Such imperatives imply a second-person subject (you), but some other languages also have first- and third-person imperatives, with the meaning of "let's (do something)" or "let them (do something)" (the forms may alternatively be called cohortative and jussive).

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Imperativ

I
buy 
you
Let´s buy 
he/she/it
buy 
we
 
you
 
they
 

Participle of the irregular verb [buy]

​The past participle is one of the most important parts of English grammar. It’s used to express perfect tenses and to form the passive voice. It’s also a useful tool for writing sentences that describe actions that started in the past and are still happening today. The past participles of irregular verbs don’t follow a specific pattern and can have numerous endings.

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Present participle

I
buying 
you
 
he/she/it
 
we
 
you
 
they
 

Past participle

I
bought 
you
 
he/she/it
 
we
 
you
 
they
 

Phrasal verbs of the irregular verb [buy]

buy back

buy forward

buy into

buy off

buy out

buy over

buy up













Irregular verbs