could prevaccinate
Verbo regular: prevaccinate - prevaccinated- prevaccinated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could prevaccinate
you could prevaccinate
she could prevaccinate
we could prevaccinate
you could prevaccinate
they could prevaccinate 	I could be prevaccinating
you could be prevaccinating
she could be prevaccinating
we could be prevaccinating
you could be prevaccinating
they could be prevaccinating	I could have prevaccinated
you could have prevaccinated
she could have prevaccinated
we could have prevaccinated
you could have prevaccinated
they could have prevaccinated	I could have been prevaccinating
you could have been prevaccinating
she could have been prevaccinating
we could have been prevaccinating
you could have been prevaccinating
they could have been prevaccinating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't prevaccinate
you couldn't prevaccinate
she couldn't prevaccinate
we couldn't prevaccinate
you couldn't prevaccinate
they couldn't prevaccinate 	I couldn't be prevaccinating
you couldn't be prevaccinating
she couldn't be prevaccinating
we couldn't be prevaccinating
you couldn't be prevaccinating
they couldn't be prevaccinating	I couldn't have prevaccinated
you couldn't have prevaccinated
she couldn't have prevaccinated
we couldn't have prevaccinated
you couldn't have prevaccinated
they couldn't have prevaccinated	I couldn't have been prevaccinating
you couldn't have been prevaccinating
she couldn't have been prevaccinating
we couldn't have been prevaccinating
you couldn't have been prevaccinating
they couldn't have been prevaccinating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I prevaccinate?
could you prevaccinate?
could she prevaccinate?
could we prevaccinate?
could you prevaccinate?
could they prevaccinate? 	could I be prevaccinating?
could you be prevaccinating?
could she be prevaccinating?
could we be prevaccinating?
could you be prevaccinating?
could they be prevaccinating? 	could I have prevaccinated?
could you have prevaccinated?
could she have prevaccinated?
could we have prevaccinated?
could you have prevaccinated?
could they have prevaccinated? 	could I have been prevaccinating?
could you have been prevaccinating?
could she have been prevaccinating?
could we have been prevaccinating?
could you have been prevaccinating?
could they have been prevaccinating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I prevaccinate?
couldn't you prevaccinate?
couldn't she prevaccinate?
couldn't we prevaccinate?
couldn't you prevaccinate?
couldn't they prevaccinate? 	couldn't I be prevaccinating?
couldn't you be prevaccinating?
couldn't she be prevaccinating?
couldn't we be prevaccinating?
couldn't you be prevaccinating?
couldn't they be prevaccinating? 	couldn't I have prevaccinated?
couldn't you have prevaccinated?
couldn't she have prevaccinated?
couldn't we have prevaccinated?
couldn't you have prevaccinated?
couldn't they have prevaccinated? 	couldn't I have been prevaccinating?
couldn't you have been prevaccinating?
couldn't she have been prevaccinating?
couldn't we have been prevaccinating?
couldn't you have been prevaccinating?
couldn't they have been prevaccinating?