to thumb
Regular verb: thumb - thumbed- thumbed

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I thumb
you thumb
she thumbs
we thumb
you thumb
they thumb 	I'mthumbing
you'rethumbing
she'sthumbing
we'rethumbing
you'rethumbing
they'rethumbing	I thumbed
you thumbed
she thumbed
we thumbed
you thumbed
they thumbed	Iwasthumbing
youwerethumbing
shewasthumbing
wewerethumbing
youwerethumbing
theywerethumbing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've thumbed
you've thumbed
she's thumbed
we've thumbed
you've thumbed
they've thumbed	I'vebeen thumbing
you'vebeen thumbing
she'sbeen thumbing
we'vebeen thumbing
you'vebeen thumbing
they'vebeen thumbing	I'd thumbed
you'd thumbed
she'd thumbed
we'd thumbed
you'd thumbed
they'd thumbed	I'd been thumbing
you'd been thumbing
she'd been thumbing
we'd been thumbing
you'd been thumbing
they'd been thumbing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll thumb
you'll thumb
she'll thumb
we'll thumb
you'll thumb
they'll thumb 	I'll be thumbing
you'll be thumbing
she'll be thumbing
we'll be thumbing
you'll be thumbing
they'll be thumbing	I'll have thumbed
you'll have thumbed
she'll have thumbed
we'll have thumbed
you'll have thumbed
they'll have thumbed	I'll have been thumbing
you'll have been thumbing
she'll have been thumbing
we'll have been thumbing
you'll have been thumbing
they'll have been thumbing	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd thumb
you'd thumb
she'd thumb
we'd thumb
you'd thumb
they'd thumb 	I'd be thumbing
you'd be thumbing
she'd be thumbing
we'd be thumbing
you'd be thumbing
they'd be thumbing	I'd have thumbed
you'd have thumbed
she'd have thumbed
we'd have thumbed
you'd have thumbed
they'd have thumbed	I'd have been thumbing
you'd have been thumbing
she'd have been thumbing
we'd have been thumbing
you'd have been thumbing
they'd have been thumbing	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to thumb 	 	thumb
Let's thumb
thumb 	 	

Participle 	
Present 	Past 	 	 	
thumbing	thumbed