may collaborate
Regular verb: collaborate - collaborated- collaborated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may collaborate
you may collaborate
she may collaborate
we may collaborate
you may collaborate
they may collaborate 	I may be collaborating
you may be collaborating
she may be collaborating
we may be collaborating
you may be collaborating
they may be collaborating	I may have collaborated
you may have collaborated
she may have collaborated
we may have collaborated
you may have collaborated
they may have collaborated	I may have been collaborating
you may have been collaborating
she may have been collaborating
we may have been collaborating
you may have been collaborating
they may have been collaborating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not collaborate
you may not collaborate
she may not collaborate
we may not collaborate
you may not collaborate
they may not collaborate 	I may not be collaborating
you may not be collaborating
she may not be collaborating
we may not be collaborating
you may not be collaborating
they may not be collaborating	I may not have collaborated
you may not have collaborated
she may not have collaborated
we may not have collaborated
you may not have collaborated
they may not have collaborated	I may not have been collaborating
you may not have been collaborating
she may not have been collaborating
we may not have been collaborating
you may not have been collaborating
they may not have been collaborating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I collaborate?
may you collaborate?
may she collaborate?
may we collaborate?
may you collaborate?
may they collaborate? 	may I be collaborating?
may you be collaborating?
may she be collaborating?
may we be collaborating?
may you be collaborating?
may they be collaborating? 	may I have collaborated?
may you have collaborated?
may she have collaborated?
may we have collaborated?
may you have collaborated?
may they have collaborated? 	may I have been collaborating?
may you have been collaborating?
may she have been collaborating?
may we have been collaborating?
may you have been collaborating?
may they have been collaborating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not collaborate?
may you not collaborate?
may she not collaborate?
may we not collaborate?
may you not collaborate?
may they not collaborate? 	may I not be collaborating?
may you not be collaborating?
may she not be collaborating?
may we not be collaborating?
may you not be collaborating?
may they not be collaborating? 	may I not have collaborated?
may you not have collaborated?
may she not have collaborated?
may we not have collaborated?
may you not have collaborated?
may they not have collaborated? 	may I not have been collaborating?
may you not have been collaborating?
may she not have been collaborating?
may we not have been collaborating?
may you not have been collaborating?
may they not have been collaborating?