English verb conjugation
MUST SHELTER

Regular verb: shelter - sheltered - sheltered

Affirmation

Simple form	V-ing form
I must shelter you must shelter he must shelter we must shelter you must shelter they must shelter	I must be sheltering you must be sheltering he must be sheltering we must be sheltering you must be sheltering they must be sheltering
Perfect	V-ing perfect
I must have sheltered you must have sheltered he must have sheltered we must have sheltered you must have sheltered they must have sheltered	I must have been sheltering you must have been sheltering he must have been sheltering we must have been sheltering you must have been sheltering they must have been sheltering

Negation

Simple form	V-ing form
I mustn't shelter you mustn't shelter he mustn't shelter we mustn't shelter you mustn't shelter they mustn't shelter	I mustn't be sheltering you mustn't be sheltering he mustn't be sheltering we mustn't be sheltering you mustn't be sheltering they mustn't be sheltering
Perfect	V-ing perfect
I mustn't have sheltered you mustn't have sheltered he mustn't have sheltered we mustn't have sheltered you mustn't have sheltered they mustn't have sheltered	I mustn't have been sheltering you mustn't have been sheltering he mustn't have been sheltering we mustn't have been sheltering you mustn't have been sheltering they mustn't have been sheltering

Interrogative form

Simple form	V-ing form
must I shelter? must you shelter? must he shelter? must we shelter? must you shelter? must they shelter?	must I be sheltering? must you be sheltering? must he be sheltering? must we be sheltering? must you be sheltering? must they be sheltering?
Perfect	V-ing perfect
must I have sheltered? must you have sheltered? must he have sheltered? must we have sheltered? must you have sheltered? must they have sheltered?	must I have been sheltering? must you have been sheltering? must he have been sheltering? must we have been sheltering? must you have been sheltering? must they have been sheltering?

Interro-negative form

Simple form	V-ing form
mustn't I shelter? mustn't you shelter? mustn't he shelter? mustn't we shelter? mustn't you shelter? mustn't they shelter?	mustn't I be sheltering? mustn't you be sheltering? mustn't he be sheltering? mustn't we be sheltering? mustn't you be sheltering? mustn't they be sheltering?
Perfect	V-ing perfect
mustn't I have sheltered? mustn't you have sheltered? mustn't he have sheltered? mustn't we have sheltered? mustn't you have sheltered? mustn't they have sheltered?	mustn't I have been sheltering? mustn't you have been sheltering? mustn't he have been sheltering? mustn't we have been sheltering? mustn't you have been sheltering? mustn't they have been sheltering?