to thumbtack
Regular verb: thumbtack - thumbtacked- thumbtacked

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I thumbtack
you thumbtack
he thumbtacks
we thumbtack
you thumbtack
they thumbtack 	Iamthumbtacking
youarethumbtacking
heisthumbtacking
wearethumbtacking
youarethumbtacking
theyarethumbtacking	I thumbtacked
you thumbtacked
he thumbtacked
we thumbtacked
you thumbtacked
they thumbtacked	Iwasthumbtacking
youwerethumbtacking
hewasthumbtacking
wewerethumbtacking
youwerethumbtacking
theywerethumbtacking	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I have thumbtacked
you have thumbtacked
he has thumbtacked
we have thumbtacked
you have thumbtacked
they have thumbtacked	I have been thumbtacking
you have been thumbtacking
hehasbeen thumbtacking
we have been thumbtacking
you have been thumbtacking
they have been thumbtacking	I had thumbtacked
you had thumbtacked
he had thumbtacked
we had thumbtacked
you had thumbtacked
they had thumbtacked	I had been thumbtacking
you had been thumbtacking
he had been thumbtacking
we had been thumbtacking
you had been thumbtacking
they had been thumbtacking	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I will thumbtack
you will thumbtack
he will thumbtack
we will thumbtack
you will thumbtack
they will thumbtack 	I will be thumbtacking
you will be thumbtacking
he will be thumbtacking
we will be thumbtacking
you will be thumbtacking
they will be thumbtacking	I will have thumbtacked
you will have thumbtacked
he will have thumbtacked
we will have thumbtacked
you will have thumbtacked
they will have thumbtacked	I will have been thumbtacking
you will have been thumbtacking
he will have been thumbtacking
we will have been thumbtacking
you will have been thumbtacking
they will have been thumbtacking	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I would thumbtack
you would thumbtack
he would thumbtack
we would thumbtack
you would thumbtack
they would thumbtack 	I would be thumbtacking
you would be thumbtacking
he would be thumbtacking
we would be thumbtacking
you would be thumbtacking
they would be thumbtacking	I would have thumbtacked
you would have thumbtacked
he would have thumbtacked
we would have thumbtacked
you would have thumbtacked
they would have thumbtacked	I would have been thumbtacking
you would have been thumbtacking
he would have been thumbtacking
we would have been thumbtacking
you would have been thumbtacking
they would have been thumbtacking	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to thumbtack 	 	thumbtack
Let's thumbtack
thumbtack 	 	

Participle 	
Present 	Past 	 	 	
thumbtacking	thumbtacked