Verbs tenses

Overview of all tenses:
Summary explanation:
http://www.englisch-hilfen.de/en/grammar/english_tenses.htm
http://www.englisch-hilfen.de/en/grammar/tenses_bild.htm

Simple present (present simple)Summary explanation:
http://www.englisch-hilfen.de/en/grammar/sim_pres.htm

How to form simple present:
Infinitive or for 3rd person singular he, she, it: infinitive + -s

Example:
|Singular|Plural |
|I walk |We walk |
|You walk |You walk|
|He/She/It walks |They walk |

Present continuous (present progressive)
Summary explanation:http://www.englisch-hilfen.de/en/grammar/pres_pro.htm

How to form present continuous:
To be (am, are, is) + infinitive + -ing

Example:
|Singular |Plural |
|I am walking|We are walking |
|You are walking |You are walking |
|He/She/It is walking |They are walking|

Going to-future
Summary explanation:
http://www.englisch-hilfen.de/en/grammar/going_to.htm

How to form going to-future:
To be (am, are, is) + going to + infinitive

Example:|Singular |Plural |
|I am going to walk |We are going to walk |
|You are going to walk |You aregoing to walk |
|He/She/It is going to walk |They are going to walk |



Simple past (past simple)
Summary explanation:http://www.englisch-hilfen.de/en/grammar/sim_past.htm

How to form simple past:
Regular verbs: infinitive + -ed
Irregular verbs: see table and link
http://www.englisch-hilfen.de/en/grammar/unreg_verben.htm

Example:
|Singular...