Conjugation and declension of "concern" in English
Conjugation of the verb concern[kənˈsə:n],
regular 
Indicative
Present Indefinite
Present Continuous
Present Perfect
Present Perfect Continuous
Past Indefinite
Past Continuous
Past Perfect
Past Perfect Continuous
Future Indefinite
Future Continuous
Future Perfect
Future Perfect Continuous
Indicative
Present Indefinite
I don't concernyou don't concern
he/she/it doesn't concern
we don't concern
you don't concern
they don't concern
Present Continuous
I am not concerningyou aren't concerning
he/she/it isn't concerning
we aren't concerning
you aren't concerning
they aren't concerning
Present Perfect
I haven't concernedyou haven't concerned
he/she/it hasn't concerned
we haven't concerned
you haven't concerned
they haven't concerned
Present Perfect Continuous
I haven't been concerningyou haven't been concerning
he/she/it hasn't been concerning
we haven't been concerning
you haven't been concerning
they haven't been concerning
Past Indefinite
I didn't concernyou didn't concern
he/she/it didn't concern
we didn't concern
you didn't concern
they didn't concern
Past Continuous
I wasn't concerningyou weren't concerning
he/she/it wasn't concerning
we weren't concerning
you weren't concerning
they weren't concerning
Past Perfect
I hadn't concernedyou hadn't concerned
he/she/it hadn't concerned
we hadn't concerned
you hadn't concerned
they hadn't concerned
Past Perfect Continuous
I hadn't been concerningyou hadn't been concerning
he/she/it hadn't been concerning
we hadn't been concerning
you hadn't been concerning
they hadn't been concerning
Future Indefinite
I shan't / won't concernyou won't concern
he/she/it won't concern
we shan't / won't concern
you won't concern
they won't concern
Future Continuous
I shan't / won't be concerningyou won't be concerning
he/she/it won't be concerning
we shan't / won't be concerning
you won't be concerning
they won't be concerning
Future Perfect
I shan't / won't have concernedyou won't have concerned
he/she/it won't have concerned
we shan't / won't have concerned
you won't have concerned
they won't have concerned
Future Perfect Continuous
I shan't / won't have been concerningyou won't have been concerning
he/she/it won't have been concerning
we shan't / won't have been concerning
you won't have been concerning
they won't have been concerning
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't concernyou wouldn't concern
he/she/it wouldn't concern
we wouldn't concern
you wouldn't concern
they wouldn't concern
Conditional Present Continuous
I wouldn't be concerningyou wouldn't be concerning
he/she/it wouldn't be concerning
we wouldn't be concerning
you wouldn't be concerning
they wouldn't be concerning
Conditional Perfect
I wouldn't have concernedyou wouldn't have concerned
he/she/it wouldn't have concerned
we wouldn't have concerned
you wouldn't have concerned
they wouldn't have concerned
Conditional Perfect Continuous
I wouldn't have been concerningyou wouldn't have been concerning
he/she/it wouldn't have been concerning
we wouldn't have been concerning
you wouldn't have been concerning
they wouldn't have been concerning
Participles
Present
Past
Infinitives
Infinitives
Popular English Verbs
Conjugation of English verbs
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