Conjugation and declension of "letterbox" in English
Conjugation of the verb letterbox[ˈletəbɔks],
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 letterboxyou don't letterbox
he/she/it doesn't letterbox
we don't letterbox
you don't letterbox
they don't letterbox
Present Continuous
I am not letterboxingyou aren't letterboxing
he/she/it isn't letterboxing
we aren't letterboxing
you aren't letterboxing
they aren't letterboxing
Present Perfect
I haven't letterboxedyou haven't letterboxed
he/she/it hasn't letterboxed
we haven't letterboxed
you haven't letterboxed
they haven't letterboxed
Present Perfect Continuous
I haven't been letterboxingyou haven't been letterboxing
he/she/it hasn't been letterboxing
we haven't been letterboxing
you haven't been letterboxing
they haven't been letterboxing
Past Indefinite
I didn't letterboxyou didn't letterbox
he/she/it didn't letterbox
we didn't letterbox
you didn't letterbox
they didn't letterbox
Past Continuous
I wasn't letterboxingyou weren't letterboxing
he/she/it wasn't letterboxing
we weren't letterboxing
you weren't letterboxing
they weren't letterboxing
Past Perfect
I hadn't letterboxedyou hadn't letterboxed
he/she/it hadn't letterboxed
we hadn't letterboxed
you hadn't letterboxed
they hadn't letterboxed
Past Perfect Continuous
I hadn't been letterboxingyou hadn't been letterboxing
he/she/it hadn't been letterboxing
we hadn't been letterboxing
you hadn't been letterboxing
they hadn't been letterboxing
Future Indefinite
I shan't / won't letterboxyou won't letterbox
he/she/it won't letterbox
we shan't / won't letterbox
you won't letterbox
they won't letterbox
Future Continuous
I shan't / won't be letterboxingyou won't be letterboxing
he/she/it won't be letterboxing
we shan't / won't be letterboxing
you won't be letterboxing
they won't be letterboxing
Future Perfect
I shan't / won't have letterboxedyou won't have letterboxed
he/she/it won't have letterboxed
we shan't / won't have letterboxed
you won't have letterboxed
they won't have letterboxed
Future Perfect Continuous
I shan't / won't have been letterboxingyou won't have been letterboxing
he/she/it won't have been letterboxing
we shan't / won't have been letterboxing
you won't have been letterboxing
they won't have been letterboxing
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't letterboxyou wouldn't letterbox
he/she/it wouldn't letterbox
we wouldn't letterbox
you wouldn't letterbox
they wouldn't letterbox
Conditional Present Continuous
I wouldn't be letterboxingyou wouldn't be letterboxing
he/she/it wouldn't be letterboxing
we wouldn't be letterboxing
you wouldn't be letterboxing
they wouldn't be letterboxing
Conditional Perfect
I wouldn't have letterboxedyou wouldn't have letterboxed
he/she/it wouldn't have letterboxed
we wouldn't have letterboxed
you wouldn't have letterboxed
they wouldn't have letterboxed
Conditional Perfect Continuous
I wouldn't have been letterboxingyou wouldn't have been letterboxing
he/she/it wouldn't have been letterboxing
we wouldn't have been letterboxing
you wouldn't have been letterboxing
they wouldn't have been letterboxing
Participles
Present
Past
Infinitives
Infinitives
Popular English Verbs
Conjugation of English verbs
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English verb conjugation tables
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