can suppress
Regular verb: suppress - suppressed- suppressed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can suppress
you can suppress
she can suppress
we can suppress
you can suppress
they can suppress 	I can be suppressing
you can be suppressing
she can be suppressing
we can be suppressing
you can be suppressing
they can be suppressing	I can have suppressed
you can have suppressed
she can have suppressed
we can have suppressed
you can have suppressed
they can have suppressed	I can have been suppressing
you can have been suppressing
she can have been suppressing
we can have been suppressing
you can have been suppressing
they can have been suppressing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot suppress
you cannot suppress
she cannot suppress
we cannot suppress
you cannot suppress
they cannot suppress 	I cannot be suppressing
you cannot be suppressing
she cannot be suppressing
we cannot be suppressing
you cannot be suppressing
they cannot be suppressing	I cannot have suppressed
you cannot have suppressed
she cannot have suppressed
we cannot have suppressed
you cannot have suppressed
they cannot have suppressed	I cannot have been suppressing
you cannot have been suppressing
she cannot have been suppressing
we cannot have been suppressing
you cannot have been suppressing
they cannot have been suppressing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I suppress?
can you suppress?
can she suppress?
can we suppress?
can you suppress?
can they suppress? 	can I be suppressing?
can you be suppressing?
can she be suppressing?
can we be suppressing?
can you be suppressing?
can they be suppressing? 	can I have suppressed?
can you have suppressed?
can she have suppressed?
can we have suppressed?
can you have suppressed?
can they have suppressed? 	can I have been suppressing?
can you have been suppressing?
can she have been suppressing?
can we have been suppressing?
can you have been suppressing?
can they have been suppressing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not suppress?
can you not suppress?
can she not suppress?
can we not suppress?
can you not suppress?
can they not suppress? 	can I not be suppressing?
can you not be suppressing?
can she not be suppressing?
can we not be suppressing?
can you not be suppressing?
can they not be suppressing? 	can I not have suppressed?
can you not have suppressed?
can she not have suppressed?
can we not have suppressed?
can you not have suppressed?
can they not have suppressed? 	can I not have been suppressing?
can you not have been suppressing?
can she not have been suppressing?
can we not have been suppressing?
can you not have been suppressing?
can they not have been suppressing?