What verb would you like to conjugate?

WOW! With the amount of searches you've done, you should buy the book!

costar to cost

Simple Tenses
Compound Tenses
Present Indicative
cuest cost " " " cuest
Add present
indicative endings
cuesto
costamos
cuestas
costáis
cuesta
cuestan
remove -o from cuesto; stem change
Present Subjunctive
cuest cost " " " cuest
Add present
subjunctive endings
cueste
costemos
cuestes
costéis
cueste
cuesten
Imperfect Indicative
cost
Add imperfect
indicative endings
costaba
costábamos
costabas
costabais
costaba
costaban
remove -ron from costaron
Imperfect Subjunctive
costa
Add imperfect
subjunctive endings
costara
costáramos
costaras
costarais
costara
costaran
Preterite
cost
Add preterite
endings
costé
costamos
costaste
costasteis
costó
costaron
remove -ar from infinitive; stem change
Infinitive 
costar
use infinitive as future stem
remove -ar and add -ando
Present Participle
costando
remove -ar and add -ado
Past Participle
costado
Future
costar
Add future
endings
costaré
costaremos
costarás
costaréis
costará
costarán
Conditional
costar
Add conditional
endings
costaría
costaríamos
costarías
costaríais
costaría
costarían
Perfect Indicative
present indicative
of haber
Add past participle
he costado
hemos costado
has costado
habéis costado
ha costado
han costado
Perfect Subjunctive
present subjunctive
of haber
Add past participle
haya costado
hayamos costado
hayas costado
hayáis costado
haya costado
hayan costado
pluperfect Indicative
imperfect indicative
of haber
Add past participle
había costado
habíamos costado
habías costado
habíais costado
había costado
habían costado
Past Participle
costado
pluperfect Subjunctive
imperfect subjunctive
of haber
Add past participle
hubiera costado
hubiéramos costado
hubieras costado
hubierais costado
hubiera costado
hubieran costado
Future perfect
future
of haber
Add past participle
habré costado
habremos costado
habrás costado
habréis costado
habrá costado
habrán costado
Conditional perfect
conditional
of haber
Add past participle
habría costado
habríamos costado
habrías costado
habríais costado
habría costado
habrían costado

Key points

The key points are only available in the book!

This feature summarises the most important parts of each verb pattern, highlighting any irregular participles or verb stems. Get the book for the full verbMAPS experience.

Buy the book
Popular French verbs
budgétiserVerb of the day
 
Buy the book
Popular Spanish verbs
ensañarVerb of the day
 
Buy the book
Popular Italian verbs
correlareVerb of the day
 
Buy the book
Popular Portuguese verbs
resultarVerb of the day
 
Buy the book