Conjugation and declension of "quarterback" in English
Conjugation of the verb quarterback[ˈkwɔ:təbæk],
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 quarterbackyou don't quarterback
he/she/it doesn't quarterback
we don't quarterback
you don't quarterback
they don't quarterback
Present Continuous
I am not quarterbackingyou aren't quarterbacking
he/she/it isn't quarterbacking
we aren't quarterbacking
you aren't quarterbacking
they aren't quarterbacking
Present Perfect
I haven't quarterbackedyou haven't quarterbacked
he/she/it hasn't quarterbacked
we haven't quarterbacked
you haven't quarterbacked
they haven't quarterbacked
Present Perfect Continuous
I haven't been quarterbackingyou haven't been quarterbacking
he/she/it hasn't been quarterbacking
we haven't been quarterbacking
you haven't been quarterbacking
they haven't been quarterbacking
Past Indefinite
I didn't quarterbackyou didn't quarterback
he/she/it didn't quarterback
we didn't quarterback
you didn't quarterback
they didn't quarterback
Past Continuous
I wasn't quarterbackingyou weren't quarterbacking
he/she/it wasn't quarterbacking
we weren't quarterbacking
you weren't quarterbacking
they weren't quarterbacking
Past Perfect
I hadn't quarterbackedyou hadn't quarterbacked
he/she/it hadn't quarterbacked
we hadn't quarterbacked
you hadn't quarterbacked
they hadn't quarterbacked
Past Perfect Continuous
I hadn't been quarterbackingyou hadn't been quarterbacking
he/she/it hadn't been quarterbacking
we hadn't been quarterbacking
you hadn't been quarterbacking
they hadn't been quarterbacking
Future Indefinite
I shan't / won't quarterbackyou won't quarterback
he/she/it won't quarterback
we shan't / won't quarterback
you won't quarterback
they won't quarterback
Future Continuous
I shan't / won't be quarterbackingyou won't be quarterbacking
he/she/it won't be quarterbacking
we shan't / won't be quarterbacking
you won't be quarterbacking
they won't be quarterbacking
Future Perfect
I shan't / won't have quarterbackedyou won't have quarterbacked
he/she/it won't have quarterbacked
we shan't / won't have quarterbacked
you won't have quarterbacked
they won't have quarterbacked
Future Perfect Continuous
I shan't / won't have been quarterbackingyou won't have been quarterbacking
he/she/it won't have been quarterbacking
we shan't / won't have been quarterbacking
you won't have been quarterbacking
they won't have been quarterbacking
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't quarterbackyou wouldn't quarterback
he/she/it wouldn't quarterback
we wouldn't quarterback
you wouldn't quarterback
they wouldn't quarterback
Conditional Present Continuous
I wouldn't be quarterbackingyou wouldn't be quarterbacking
he/she/it wouldn't be quarterbacking
we wouldn't be quarterbacking
you wouldn't be quarterbacking
they wouldn't be quarterbacking
Conditional Perfect
I wouldn't have quarterbackedyou wouldn't have quarterbacked
he/she/it wouldn't have quarterbacked
we wouldn't have quarterbacked
you wouldn't have quarterbacked
they wouldn't have quarterbacked
Conditional Perfect Continuous
I wouldn't have been quarterbackingyou wouldn't have been quarterbacking
he/she/it wouldn't have been quarterbacking
we wouldn't have been quarterbacking
you wouldn't have been quarterbacking
they wouldn't have been quarterbacking
Participles
Present
Past
Infinitives
Infinitives
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