could tranquillize
Verbo regolare: tranquillize - tranquillized- tranquillized

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could tranquillize
you could tranquillize
she could tranquillize
we could tranquillize
you could tranquillize
they could tranquillize 	I could be tranquillizing
you could be tranquillizing
she could be tranquillizing
we could be tranquillizing
you could be tranquillizing
they could be tranquillizing	I could have tranquillized
you could have tranquillized
she could have tranquillized
we could have tranquillized
you could have tranquillized
they could have tranquillized	I could have been tranquillizing
you could have been tranquillizing
she could have been tranquillizing
we could have been tranquillizing
you could have been tranquillizing
they could have been tranquillizing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't tranquillize
you couldn't tranquillize
she couldn't tranquillize
we couldn't tranquillize
you couldn't tranquillize
they couldn't tranquillize 	I couldn't be tranquillizing
you couldn't be tranquillizing
she couldn't be tranquillizing
we couldn't be tranquillizing
you couldn't be tranquillizing
they couldn't be tranquillizing	I couldn't have tranquillized
you couldn't have tranquillized
she couldn't have tranquillized
we couldn't have tranquillized
you couldn't have tranquillized
they couldn't have tranquillized	I couldn't have been tranquillizing
you couldn't have been tranquillizing
she couldn't have been tranquillizing
we couldn't have been tranquillizing
you couldn't have been tranquillizing
they couldn't have been tranquillizing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I tranquillize?
could you tranquillize?
could she tranquillize?
could we tranquillize?
could you tranquillize?
could they tranquillize? 	could I be tranquillizing?
could you be tranquillizing?
could she be tranquillizing?
could we be tranquillizing?
could you be tranquillizing?
could they be tranquillizing? 	could I have tranquillized?
could you have tranquillized?
could she have tranquillized?
could we have tranquillized?
could you have tranquillized?
could they have tranquillized? 	could I have been tranquillizing?
could you have been tranquillizing?
could she have been tranquillizing?
could we have been tranquillizing?
could you have been tranquillizing?
could they have been tranquillizing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I tranquillize?
couldn't you tranquillize?
couldn't she tranquillize?
couldn't we tranquillize?
couldn't you tranquillize?
couldn't they tranquillize? 	couldn't I be tranquillizing?
couldn't you be tranquillizing?
couldn't she be tranquillizing?
couldn't we be tranquillizing?
couldn't you be tranquillizing?
couldn't they be tranquillizing? 	couldn't I have tranquillized?
couldn't you have tranquillized?
couldn't she have tranquillized?
couldn't we have tranquillized?
couldn't you have tranquillized?
couldn't they have tranquillized? 	couldn't I have been tranquillizing?
couldn't you have been tranquillizing?
couldn't she have been tranquillizing?
couldn't we have been tranquillizing?
couldn't you have been tranquillizing?
couldn't they have been tranquillizing?