should attest
Verbo regular: attest - attested- attested

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should attest
you should attest
she should attest
we should attest
you should attest
they should attest 	I should be attesting
you should be attesting
she should be attesting
we should be attesting
you should be attesting
they should be attesting	I should have attested
you should have attested
she should have attested
we should have attested
you should have attested
they should have attested	I should have been attesting
you should have been attesting
she should have been attesting
we should have been attesting
you should have been attesting
they should have been attesting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not attest
you should not attest
she should not attest
we should not attest
you should not attest
they should not attest 	I should not be attesting
you should not be attesting
she should not be attesting
we should not be attesting
you should not be attesting
they should not be attesting	I should not have attested
you should not have attested
she should not have attested
we should not have attested
you should not have attested
they should not have attested	I should not have been attesting
you should not have been attesting
she should not have been attesting
we should not have been attesting
you should not have been attesting
they should not have been attesting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I attest?
should you attest?
should she attest?
should we attest?
should you attest?
should they attest? 	should I be attesting?
should you be attesting?
should she be attesting?
should we be attesting?
should you be attesting?
should they be attesting? 	should I have attested?
should you have attested?
should she have attested?
should we have attested?
should you have attested?
should they have attested? 	should I have been attesting?
should you have been attesting?
should she have been attesting?
should we have been attesting?
should you have been attesting?
should they have been attesting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not attest?
should you not attest?
should she not attest?
should we not attest?
should you not attest?
should they not attest? 	should I not be attesting?
should you not be attesting?
should she not be attesting?
should we not be attesting?
should you not be attesting?
should they not be attesting? 	should I not have attested?
should you not have attested?
should she not have attested?
should we not have attested?
should you not have attested?
should they not have attested? 	should I not have been attesting?
should you not have been attesting?
should she not have been attesting?
should we not have been attesting?
should you not have been attesting?
should they not have been attesting?