to doubt
Regular verb: doubt - doubted- doubted

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I doubt
you doubt
she doubts
we doubt
you doubt
they doubt 	I'mdoubting
you'redoubting
she'sdoubting
we'redoubting
you'redoubting
they'redoubting	I doubted
you doubted
she doubted
we doubted
you doubted
they doubted	Iwasdoubting
youweredoubting
shewasdoubting
weweredoubting
youweredoubting
theyweredoubting	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've doubted
you've doubted
she's doubted
we've doubted
you've doubted
they've doubted	I'vebeen doubting
you'vebeen doubting
she'sbeen doubting
we'vebeen doubting
you'vebeen doubting
they'vebeen doubting	I'd doubted
you'd doubted
she'd doubted
we'd doubted
you'd doubted
they'd doubted	I'd been doubting
you'd been doubting
she'd been doubting
we'd been doubting
you'd been doubting
they'd been doubting	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll doubt
you'll doubt
she'll doubt
we'll doubt
you'll doubt
they'll doubt 	I'll be doubting
you'll be doubting
she'll be doubting
we'll be doubting
you'll be doubting
they'll be doubting	I'll have doubted
you'll have doubted
she'll have doubted
we'll have doubted
you'll have doubted
they'll have doubted	I'll have been doubting
you'll have been doubting
she'll have been doubting
we'll have been doubting
you'll have been doubting
they'll have been doubting	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd doubt
you'd doubt
she'd doubt
we'd doubt
you'd doubt
they'd doubt 	I'd be doubting
you'd be doubting
she'd be doubting
we'd be doubting
you'd be doubting
they'd be doubting	I'd have doubted
you'd have doubted
she'd have doubted
we'd have doubted
you'd have doubted
they'd have doubted	I'd have been doubting
you'd have been doubting
she'd have been doubting
we'd have been doubting
you'd have been doubting
they'd have been doubting	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to doubt 	 	doubt
Let's doubt
doubt 	 	

Participle 	
Present 	Past 	 	 	
doubting	doubted