Conjugación del verbo inglés
SHOULD TRAIL

Verbo regular: trail - trailed - trailed

Afirmación

Forma simple	Forma con V-ing
I'd trail you'd trail he'd trail we'd trail you'd trail they'd trail	I'd be trailing you'd be trailing he'd be trailing we'd be trailing you'd be trailing they'd be trailing
Perfecto	Perfecto con V-ing
I should've trailed you should've trailed he should've trailed we should've trailed you should've trailed they should've trailed	I should've been trailing you should've been trailing he should've been trailing we should've been trailing you should've been trailing they should've been trailing

Negación

Forma simple	Forma con V-ing
I shouldn't trail you shouldn't trail he shouldn't trail we shouldn't trail you shouldn't trail they shouldn't trail	I shouldn't be trailing you shouldn't be trailing he shouldn't be trailing we shouldn't be trailing you shouldn't be trailing they shouldn't be trailing
Perfecto	Perfecto con V-ing
I shouldn't have trailed you shouldn't have trailed he shouldn't have trailed we shouldn't have trailed you shouldn't have trailed they shouldn't have trailed	I shouldn't have been trailing you shouldn't have been trailing he shouldn't have been trailing we shouldn't have been trailing you shouldn't have been trailing they shouldn't have been trailing

Forma interrogativa

Forma simple	Forma con V-ing
should I trail? should you trail? should he trail? should we trail? should you trail? should they trail?	should I be trailing? should you be trailing? should he be trailing? should we be trailing? should you be trailing? should they be trailing?
Perfecto	Perfecto con V-ing
should I have trailed? should you have trailed? should he have trailed? should we have trailed? should you have trailed? should they have trailed?	should I have been trailing? should you have been trailing? should he have been trailing? should we have been trailing? should you have been trailing? should they have been trailing?

Forma interro-negativa

Forma simple	Forma con V-ing
shouldn't I trail? shouldn't you trail? shouldn't he trail? shouldn't we trail? shouldn't you trail? shouldn't they trail?	shouldn't I be trailing? shouldn't you be trailing? shouldn't he be trailing? shouldn't we be trailing? shouldn't you be trailing? shouldn't they be trailing?
Perfecto	Perfecto con V-ing
shouldn't I have trailed? shouldn't you have trailed? shouldn't he have trailed? shouldn't we have trailed? shouldn't you have trailed? shouldn't they have trailed?	shouldn't I have been trailing? shouldn't you have been trailing? shouldn't he have been trailing? shouldn't we have been trailing? shouldn't you have been trailing? shouldn't they have been trailing?