English verb conjugation
COULD TITIVATE

Regular verb: titivate - titivated - titivated

Affirmation

Simple form	V-ing form
I could titivate you could titivate he could titivate we could titivate you could titivate they could titivate	I could be titivating you could be titivating he could be titivating we could be titivating you could be titivating they could be titivating
Perfect	V-ing perfect
I could have titivated you could have titivated he could have titivated we could have titivated you could have titivated they could have titivated	I could have been titivating you could have been titivating he could have been titivating we could have been titivating you could have been titivating they could have been titivating

Negation

Simple form	V-ing form
I couldn't titivate you couldn't titivate he couldn't titivate we couldn't titivate you couldn't titivate they couldn't titivate	I couldn't be titivating you couldn't be titivating he couldn't be titivating we couldn't be titivating you couldn't be titivating they couldn't be titivating
Perfect	V-ing perfect
I couldn't have titivated you couldn't have titivated he couldn't have titivated we couldn't have titivated you couldn't have titivated they couldn't have titivated	I couldn't have been titivating you couldn't have been titivating he couldn't have been titivating we couldn't have been titivating you couldn't have been titivating they couldn't have been titivating

Interrogative form

Simple form	V-ing form
could I titivate? could you titivate? could he titivate? could we titivate? could you titivate? could they titivate?	could I be titivating? could you be titivating? could he be titivating? could we be titivating? could you be titivating? could they be titivating?
Perfect	V-ing perfect
could I have titivated? could you have titivated? could he have titivated? could we have titivated? could you have titivated? could they have titivated?	could I have been titivating? could you have been titivating? could he have been titivating? could we have been titivating? could you have been titivating? could they have been titivating?

Interro-negative form

Simple form	V-ing form
couldn't I titivate? couldn't you titivate? couldn't he titivate? couldn't we titivate? couldn't you titivate? couldn't they titivate?	couldn't I be titivating? couldn't you be titivating? couldn't he be titivating? couldn't we be titivating? couldn't you be titivating? couldn't they be titivating?
Perfect	V-ing perfect
couldn't I have titivated? couldn't you have titivated? couldn't he have titivated? couldn't we have titivated? couldn't you have titivated? couldn't they have titivated?	couldn't I have been titivating? couldn't you have been titivating? couldn't he have been titivating? couldn't we have been titivating? couldn't you have been titivating? couldn't they have been titivating?