could sanitize
Regular verb: sanitize - sanitized- sanitized

Affirmation 	
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I could sanitize
you could sanitize
she could sanitize
we could sanitize
you could sanitize
they could sanitize 	I could be sanitizing
you could be sanitizing
she could be sanitizing
we could be sanitizing
you could be sanitizing
they could be sanitizing	I could have sanitized
you could have sanitized
she could have sanitized
we could have sanitized
you could have sanitized
they could have sanitized	I could have been sanitizing
you could have been sanitizing
she could have been sanitizing
we could have been sanitizing
you could have been sanitizing
they could have been sanitizing	

Negation 	
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I could not sanitize
you could not sanitize
she could not sanitize
we could not sanitize
you could not sanitize
they could not sanitize 	I could not be sanitizing
you could not be sanitizing
she could not be sanitizing
we could not be sanitizing
you could not be sanitizing
they could not be sanitizing	I could not have sanitized
you could not have sanitized
she could not have sanitized
we could not have sanitized
you could not have sanitized
they could not have sanitized	I could not have been sanitizing
you could not have been sanitizing
she could not have been sanitizing
we could not have been sanitizing
you could not have been sanitizing
they could not have been sanitizing	

Interrogative form 	
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could I sanitize?
could you sanitize?
could she sanitize?
could we sanitize?
could you sanitize?
could they sanitize? 	could I be sanitizing?
could you be sanitizing?
could she be sanitizing?
could we be sanitizing?
could you be sanitizing?
could they be sanitizing? 	could I have sanitized?
could you have sanitized?
could she have sanitized?
could we have sanitized?
could you have sanitized?
could they have sanitized? 	could I have been sanitizing?
could you have been sanitizing?
could she have been sanitizing?
could we have been sanitizing?
could you have been sanitizing?
could they have been sanitizing? 	

Interro-negative form 	
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could I not sanitize?
could you not sanitize?
could she not sanitize?
could we not sanitize?
could you not sanitize?
could they not sanitize? 	could I not be sanitizing?
could you not be sanitizing?
could she not be sanitizing?
could we not be sanitizing?
could you not be sanitizing?
could they not be sanitizing? 	could I not have sanitized?
could you not have sanitized?
could she not have sanitized?
could we not have sanitized?
could you not have sanitized?
could they not have sanitized? 	could I not have been sanitizing?
could you not have been sanitizing?
could she not have been sanitizing?
could we not have been sanitizing?
could you not have been sanitizing?
could they not have been sanitizing?