must slipcover
Verbo regular: slipcover - slipcovered- slipcovered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must slipcover
you must slipcover
he must slipcover
we must slipcover
you must slipcover
they must slipcover 	I must be slipcovering
you must be slipcovering
he must be slipcovering
we must be slipcovering
you must be slipcovering
they must be slipcovering	I must have slipcovered
you must have slipcovered
he must have slipcovered
we must have slipcovered
you must have slipcovered
they must have slipcovered	I must have been slipcovering
you must have been slipcovering
he must have been slipcovering
we must have been slipcovering
you must have been slipcovering
they must have been slipcovering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not slipcover
you must not slipcover
he must not slipcover
we must not slipcover
you must not slipcover
they must not slipcover 	I must not be slipcovering
you must not be slipcovering
he must not be slipcovering
we must not be slipcovering
you must not be slipcovering
they must not be slipcovering	I must not have slipcovered
you must not have slipcovered
he must not have slipcovered
we must not have slipcovered
you must not have slipcovered
they must not have slipcovered	I must not have been slipcovering
you must not have been slipcovering
he must not have been slipcovering
we must not have been slipcovering
you must not have been slipcovering
they must not have been slipcovering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I slipcover?
must you slipcover?
must he slipcover?
must we slipcover?
must you slipcover?
must they slipcover? 	must I be slipcovering?
must you be slipcovering?
must he be slipcovering?
must we be slipcovering?
must you be slipcovering?
must they be slipcovering? 	must I have slipcovered?
must you have slipcovered?
must he have slipcovered?
must we have slipcovered?
must you have slipcovered?
must they have slipcovered? 	must I have been slipcovering?
must you have been slipcovering?
must he have been slipcovering?
must we have been slipcovering?
must you have been slipcovering?
must they have been slipcovering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not slipcover?
must you not slipcover?
must he not slipcover?
must we not slipcover?
must you not slipcover?
must they not slipcover? 	must I not be slipcovering?
must you not be slipcovering?
must he not be slipcovering?
must we not be slipcovering?
must you not be slipcovering?
must they not be slipcovering? 	must I not have slipcovered?
must you not have slipcovered?
must he not have slipcovered?
must we not have slipcovered?
must you not have slipcovered?
must they not have slipcovered? 	must I not have been slipcovering?
must you not have been slipcovering?
must he not have been slipcovering?
must we not have been slipcovering?
must you not have been slipcovering?
must they not have been slipcovering?