can boost
Regular verb: boost - boosted- boosted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can boost
you can boost
she can boost
we can boost
you can boost
they can boost 	I can be boosting
you can be boosting
she can be boosting
we can be boosting
you can be boosting
they can be boosting	I can have boosted
you can have boosted
she can have boosted
we can have boosted
you can have boosted
they can have boosted	I can have been boosting
you can have been boosting
she can have been boosting
we can have been boosting
you can have been boosting
they can have been boosting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot boost
you cannot boost
she cannot boost
we cannot boost
you cannot boost
they cannot boost 	I cannot be boosting
you cannot be boosting
she cannot be boosting
we cannot be boosting
you cannot be boosting
they cannot be boosting	I cannot have boosted
you cannot have boosted
she cannot have boosted
we cannot have boosted
you cannot have boosted
they cannot have boosted	I cannot have been boosting
you cannot have been boosting
she cannot have been boosting
we cannot have been boosting
you cannot have been boosting
they cannot have been boosting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I boost?
can you boost?
can she boost?
can we boost?
can you boost?
can they boost? 	can I be boosting?
can you be boosting?
can she be boosting?
can we be boosting?
can you be boosting?
can they be boosting? 	can I have boosted?
can you have boosted?
can she have boosted?
can we have boosted?
can you have boosted?
can they have boosted? 	can I have been boosting?
can you have been boosting?
can she have been boosting?
can we have been boosting?
can you have been boosting?
can they have been boosting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not boost?
can you not boost?
can she not boost?
can we not boost?
can you not boost?
can they not boost? 	can I not be boosting?
can you not be boosting?
can she not be boosting?
can we not be boosting?
can you not be boosting?
can they not be boosting? 	can I not have boosted?
can you not have boosted?
can she not have boosted?
can we not have boosted?
can you not have boosted?
can they not have boosted? 	can I not have been boosting?
can you not have been boosting?
can she not have been boosting?
can we not have been boosting?
can you not have been boosting?
can they not have been boosting?