could praise
Regular verb: praise - praised- praised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could praise
you could praise
he could praise
we could praise
you could praise
they could praise 	I could be praising
you could be praising
he could be praising
we could be praising
you could be praising
they could be praising	I could have praised
you could have praised
he could have praised
we could have praised
you could have praised
they could have praised	I could have been praising
you could have been praising
he could have been praising
we could have been praising
you could have been praising
they could have been praising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't praise
you couldn't praise
he couldn't praise
we couldn't praise
you couldn't praise
they couldn't praise 	I couldn't be praising
you couldn't be praising
he couldn't be praising
we couldn't be praising
you couldn't be praising
they couldn't be praising	I couldn't have praised
you couldn't have praised
he couldn't have praised
we couldn't have praised
you couldn't have praised
they couldn't have praised	I couldn't have been praising
you couldn't have been praising
he couldn't have been praising
we couldn't have been praising
you couldn't have been praising
they couldn't have been praising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I praise?
could you praise?
could he praise?
could we praise?
could you praise?
could they praise? 	could I be praising?
could you be praising?
could he be praising?
could we be praising?
could you be praising?
could they be praising? 	could I have praised?
could you have praised?
could he have praised?
could we have praised?
could you have praised?
could they have praised? 	could I have been praising?
could you have been praising?
could he have been praising?
could we have been praising?
could you have been praising?
could they have been praising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I praise?
couldn't you praise?
couldn't he praise?
couldn't we praise?
couldn't you praise?
couldn't they praise? 	couldn't I be praising?
couldn't you be praising?
couldn't he be praising?
couldn't we be praising?
couldn't you be praising?
couldn't they be praising? 	couldn't I have praised?
couldn't you have praised?
couldn't he have praised?
couldn't we have praised?
couldn't you have praised?
couldn't they have praised? 	couldn't I have been praising?
couldn't you have been praising?
couldn't he have been praising?
couldn't we have been praising?
couldn't you have been praising?
couldn't they have been praising?