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Irregular verb (past tense) cost

A2

Infinitive

cost

[kɒst]

Past simple

cost

costed

[kɒst]
[kɒstd]

Past participle

cost

costed

[kɒst]
[kɒstd]




   
   

Conjugation of the irregular verb [cost]

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
cost 
you
cost 
he/she/it
costs 
we
cost 
you
cost 
they
cost 

Present Continuous

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

Past simple

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

Past Continuous

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

Present perfect

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

Present perfect continuous

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

Past perfect

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

Past perfect continuous

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

Future

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

Future continuous

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

Future perfect

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

Future perfect continuous

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

Conditional of the irregular verb [cost]

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 cost 
you
would cost 
he/she/it
would cost 
we
would cost 
you
would cost 
they
would cost 

Conditional present progressive

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

Conditional perfect

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

Conditional perfect progressive

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

Subjunktiv of the irregular verb [cost]

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
cost 
you
cost 
he/she/it
cost 
we
cost 
you
cost 
they
cost 

Past subjunctive

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

Past perfect subjunctive

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

Imperativ of the irregular verb [cost]

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
cost 
you
Let´s cost 
he/she/it
cost 
we
 
you
 
they
 

Participle of the irregular verb [cost]

In linguistics, a participle (ptcp) is a form of nonfinite verb that comprises perfective or continuative grammatical aspects in numerous tenses. A participle also may function as an adjective or an adverb. For example, in "boiled potato", boiled is the past participle of the verb boil, adjectivally modifying the noun potato; in "ran us ragged," ragged is the past participle of the verb rag, adverbially qualifying the verb ran.

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Present participle

I
costing 
you
 
he/she/it
 
we
 
you
 
they
 

Past participle

I
cost 
you
 
he/she/it
 
we
 
you
 
they
 

Phrasal verbs of the irregular verb [cost]

cost out













Irregular verbs