will tiff
Verbo regular: tiff - tiffed- tiffed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I will tiff
you will tiff
he will tiff
we will tiff
you will tiff
they will tiff 	I will be tiffing
you will be tiffing
he will be tiffing
we will be tiffing
you will be tiffing
they will be tiffing	I will have tiffed
you will have tiffed
he will have tiffed
we will have tiffed
you will have tiffed
they will have tiffed	I will have been tiffing
you will have been tiffing
he will have been tiffing
we will have been tiffing
you will have been tiffing
they will have been tiffing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I will not tiff
you will not tiff
he will not tiff
we will not tiff
you will not tiff
they will not tiff 	I will not be tiffing
you will not be tiffing
he will not be tiffing
we will not be tiffing
you will not be tiffing
they will not be tiffing	I will not have tiffed
you will not have tiffed
he will not have tiffed
we will not have tiffed
you will not have tiffed
they will not have tiffed	I will not have been tiffing
you will not have been tiffing
he will not have been tiffing
we will not have been tiffing
you will not have been tiffing
they will not have been tiffing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
will I tiff?
will you tiff?
will he tiff?
will we tiff?
will you tiff?
will they tiff? 	will I be tiffing?
will you be tiffing?
will he be tiffing?
will we be tiffing?
will you be tiffing?
will they be tiffing? 	will I have tiffed?
will you have tiffed?
will he have tiffed?
will we have tiffed?
will you have tiffed?
will they have tiffed? 	will I have been tiffing?
will you have been tiffing?
will he have been tiffing?
will we have been tiffing?
will you have been tiffing?
will they have been tiffing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
will I not tiff?
will you not tiff?
will he not tiff?
will we not tiff?
will you not tiff?
will they not tiff? 	will I not be tiffing?
will you not be tiffing?
will he not be tiffing?
will we not be tiffing?
will you not be tiffing?
will they not be tiffing? 	will I not have tiffed?
will you not have tiffed?
will he not have tiffed?
will we not have tiffed?
will you not have tiffed?
will they not have tiffed? 	will I not have been tiffing?
will you not have been tiffing?
will he not have been tiffing?
will we not have been tiffing?
will you not have been tiffing?
will they not have been tiffing?