to collaborate
Regular verb: collaborate - collaborated- collaborated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I collaborate
you collaborate
he collaborates
we collaborate
you collaborate
they collaborate 	Iamcollaborating
youarecollaborating
heiscollaborating
wearecollaborating
youarecollaborating
theyarecollaborating	I collaborated
you collaborated
he collaborated
we collaborated
you collaborated
they collaborated	Iwascollaborating
youwerecollaborating
hewascollaborating
wewerecollaborating
youwerecollaborating
theywerecollaborating	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I have collaborated
you have collaborated
he has collaborated
we have collaborated
you have collaborated
they have collaborated	I have been collaborating
you have been collaborating
hehasbeen collaborating
we have been collaborating
you have been collaborating
they have been collaborating	I had collaborated
you had collaborated
he had collaborated
we had collaborated
you had collaborated
they had collaborated	I had been collaborating
you had been collaborating
he had been collaborating
we had been collaborating
you had been collaborating
they had been collaborating	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I will collaborate
you will collaborate
he will collaborate
we will collaborate
you will collaborate
they will collaborate 	I will be collaborating
you will be collaborating
he will be collaborating
we will be collaborating
you will be collaborating
they will be collaborating	I will have collaborated
you will have collaborated
he will have collaborated
we will have collaborated
you will have collaborated
they will have collaborated	I will have been collaborating
you will have been collaborating
he will have been collaborating
we will have been collaborating
you will have been collaborating
they will have been collaborating	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I would collaborate
you would collaborate
he would collaborate
we would collaborate
you would collaborate
they would collaborate 	I would be collaborating
you would be collaborating
he would be collaborating
we would be collaborating
you would be collaborating
they would be collaborating	I would have collaborated
you would have collaborated
he would have collaborated
we would have collaborated
you would have collaborated
they would have collaborated	I would have been collaborating
you would have been collaborating
he would have been collaborating
we would have been collaborating
you would have been collaborating
they would have been collaborating	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to collaborate 	 	collaborate
Let's collaborate
collaborate 	 	

Participle 	
Present 	Past 	 	 	
collaborating	collaborated